| Pedoman Penulisan Karya Ilmiah Skripsi, Tesis dan Disertasi H Nasuhi, I Ropi, dkk CeQDA, 2007 | 271 | 2007 |
| Religion and Regulation in Indonesia I Ropi PalgraveMacmillan, 2016 | 137 | 2016 |
| Islam & Civil Society: Pandangan Muslim Indonesia H Prasetyo, A Munhanif, I Ropi, A Subhan, J Burhanudin, dkk Gramedia Pustaka Utama, 2002 | 107 | 2002 |
| The Politics of Regulating Religion: State, Civil Society and the Quest for Religious Freedom in Modern Indonesia I Ropi PhD Thesis The Australian National University Canberra Australia, 2012 | 101* | 2012 |
| Citra Perempuan dalam Islam: Pandangan Ormas Keagamaan Jamhari, I Ropi Gramedia Pustaka Utama, 2003 | 99 | 2003 |
| Tentang Perempuan Islam: Wacana dan Gerakan A Fauzia, O Fathurrahman, I Ropi, dkk Gramedia Pustaka Utama, 2004 | 85 | 2004 |
| Gen Z: Kegalauan Identitas Keagamaan D Syafruddin, I Ropi, dkk PPIM-UIN Jakarta, 2018 | 82* | 2018 |
| Religion, Law and Intolerance in Indonesia T Lindsey, H Pausacker, I Ropi, et. all Routledge, 2016 | 67 | 2016 |
| Pendidikan Agama Islam di SMP & SMA Untuk Guru I Ropi, dkk Pendidikan Agama Islam di SMP & SMA Untuk Guru, 2012 | 48* | 2012 |
| Islamism, Government Regulation, and the Ahmadiyah Controversies in Indonesia I Ropi Al-Jami'ah: Journal of Islamic Studies 48 (2), 281-320, 2010 | 45* | 2010 |
| Whither religious moderation? The state and management of religious affairs in contemporary Indonesia I Ropi Studia Islamika 26 (3), 597-602, 2019 | 39* | 2019 |
| Fragile Relation: Muslims and Christians in Modern Indonesia I Ropi Logos Wacana Ilmu, 2000 | 31 | 2000 |
| Memahami Terorisme Sejarah, Konsep dan Model J Jahroni, I Ropi, dkk Prenada Media, 2017 | 29 | 2017 |
| Benturan Peradaban: Sikap dan Perilaku Islamis Indonesia terhadap Amerika Serikat S Mujani, J Burhanudin, I Ropi, dkk Freedom Institute, PPIM UIN Jakarta dan Penerbit Nalar, 2005 | 29 | 2005 |
| Muslim‐Christian Polemics in Indonesian Islamic Literature I Ropi Islam and Christian‐Muslim Relations 9 (2), 217-229, 1998 | 27 | 1998 |
| Islamic Thought and Movement in Contemporary Indonesia R Sukma, C Juwono, J Burhanudin, I Ropi, O Fathurrahman, dkk Centre for Strategic and International Studies (CSIS), 2007 | 24 | 2007 |
| Dari Pesantren Untuk Dunia K Hidayat, I Ropi, dkk Prenada Media, 2017 | 21 | 2017 |
| Pasang surut hubungan Aceh dan Turki Usmani: persektif sejarah J Burhanuddin, S Mujani, D Syafruddin, F Jabali, A Munhanif, S Umam, ... Studia Islamika, 2016 | 16 | 2016 |
| Depicting the Other Faith: A Bibliography Survey of Indonesian Muslim Polemics on Christianity I Ropi Studia Islamika 6 (1), 77-120, 1999 | 16 | 1999 |
| Pranata Islam di Indonesia: Pergulatan Sosial, Politik, Hukum, dan Pendidikan DS Truna, I Ropi Logos Wacana Ilmu, 2002 | 12 | 2002 |
