Implicit r-point block backward differentiation formula for solving first-order stiff ODEs ZB Ibrahim, KI Othman, M Suleiman Applied Mathematics and Computation 186 (1), 558-565, 2007 | 153 | 2007 |

Variable Step Block Backward Differentiation Formula for Solving First Order Stiff ODEs. ZB Ibrahim, KI Othman, M Suleiman World Congress on Engineering, 785-789, 2007 | 61 | 2007 |

Fixed coefficients block backward differentiation formulas for the numerical solution of stiff ordinary differential equations ZB Ibrahim, M Suleiman, KI Othman Editorial Advisory Board e 21 (3), 508-520, 2005 | 49 | 2005 |

Numerical solution of first order stiff ordinary differential equations using fifth order block backward differentiation formulas N Nasir, ZB Ibrahim, KI Othman, M Suleiman Sains Malaysiana 41 (4), 489-492, 2012 | 32 | 2012 |

A quantitative comparison of numerical method for solving stiff ordinary differential equations SAM Yatim, ZB Ibrahim, KI Othman, MB Suleiman Mathematical Problems in Engineering 2011 (1), 193691, 2011 | 26 | 2011 |

A numerical algorithm for solving stiff ordinary differential equations SAM Yatim, ZB Ibrahim, KI Othman, MB Suleiman Mathematical Problems in Engineering 2013 (1), 989381, 2013 | 25 | 2013 |

Derivation of diagonally implicit block backward differentiation formulas for solving stiff initial value problems IS Mohd Zawawi, ZB Ibrahim, KI Othman Mathematical problems in engineering 2015 (1), 179231, 2015 | 23 | 2015 |

Comparative study of secondary mathematics curriculum between Malaysia and Singapore ZB Ibrahim, KI Othman Procedia-Social and Behavioral Sciences 8, 351-355, 2010 | 20 | 2010 |

Fifth order two-point block backward differentiation formulas for solving ordinary differential equations N Nasir, ZB Ibrahim, MB Suleiman, KI Othman Appl. Math. Sci 5 (71), 3505-3518, 2011 | 18 | 2011 |

Variable order block method for solving second order ordinary differential equations ZB Ibrahim, N Zainuddin, KI Othman, M Suleiman, ISM Zawawi Sains Malaysiana 48 (8), 1761-1769, 2019 | 17 | 2019 |

2-point block predictor-corrector of backward differentiation formulas for solving second order ordinary differential equations directly ZB Ibrahim, KI Othman, M Suleiman Chiang Mai J. Sci 39 (3), 502-510, 2012 | 16 | 2012 |

Convergence of the 2-point block backward differentiation formulas ZB Ibrahim, M Suleiman, N Nasir, KI Othman Applied Mathematical Sciences 5 (70), 3473-3480, 2011 | 16 | 2011 |

Fifth order variable step block backward differentiation formulae for solving stiff ODEs SAM Yatim, ZB Ibrahim, KI Othman, F Ismail International Journal of Mathematical and Computational Sciences 4 (2), 235-237, 2010 | 15 | 2010 |

Direct fifth order block backward differentation formulas for solving second order ordinary differential equations N Zainuddin, ZB Ibrahim, KI Othman, M Suleiman Chiang Mai J. Sci 43 (5), 1171-1181, 2016 | 14 | 2016 |

Fixed coefficient A (α) stable block backward differentiation formulas for stiff ordinary differential equations ZB Ibrahim, N Mohd Noor, KI Othman Symmetry 11 (7), 846, 2019 | 13 | 2019 |

Direct block backward differentiation formulas for solving second order ordinary differential equations ZB Ibrahim, M Suleiman, KI Othman Int. Journal of Mathematical, Physical, Electrical and Computer Engineering …, 2008 | 10 | 2008 |

Developing fourth order Block Backward Differentiation Formulas for solving second order ordinary differential equations directly ZB Ibrahim, N Zainuddin, MB Suleiman, KI Othman Advanced Science Letters 19 (8), 2481-2485, 2013 | 9 | 2013 |

New Algorithm of Two‐Point Block Method for Solving Boundary Value Problem with Dirichlet and Neumann Boundary Conditions PS Phang, Z Abdul Majid, F Ismail, KI Othman, M Suleiman Mathematical Problems in Engineering 2013 (1), 917589, 2013 | 9 | 2013 |

Automatic intervalwise block partitioning using Adams type method and backward differentiation formula for solving ODEs KI Othman, ZB Ibrahim, M Suleiman, Z Majid Applied mathematics and computation 188 (2), 1642-1646, 2007 | 9 | 2007 |

ADAPTIVE ORDER OF BLOCK BACKWARD DIFFERENTIATION FORMULAS FOR STIFF ODES. ZB Ibrahim, NAAM Nasir, KI Othman, N Zainuddin Numerical Algebra, Control & Optimization 7 (1), 2017 | 8 | 2017 |