| Between God and the sultan: A history of Islamic law KS Vikør Oxford University Press, USA, 2005 | 468 | 2005 |
| Sufi and Scholar on the Desert Edge: Muḥammad B. ʻAlī Al-Sanūsī and His Brotherhood KS Vikør Northwestern University Press, 1995 | 144* | 1995 |
| Sufi brotherhoods in Africa KS Vikør The history of Islam in Africa, 441-476, 2000 | 102 | 2000 |
| The Sharia and the nation state: who can codify the divine law? KS Vikør The Middle East in a globalized world, 220-50, 2000 | 40 | 2000 |
| The exoteric Aḥmad Ibn Idrīs: a Sufi's critique on the Madhāhib and the Wahhābīs; four Arabic texts with translation and commentary B Radtke, AII Qarāfī Islamic history and civilization 31, 2000 | 39 | 2000 |
| The oasis of salt: the history of Kawar, a Saharan centre of salt production KS Vikør | 27 | 1979 |
| Mellom Gud og stat: ei historie om islamsk lov og rettsvesen KS Vikør Spartacus, 2003 | 26 | 2003 |
| The development of ijtihad and Islamic reform, 1750-1850 KS Vikør Third Nordic Conference on Middle Eastern Studies: Ethnic Encounter and …, 1995 | 23 | 1995 |
| The desert-side salt trade of Kawar KS Vikør African Economic History, 115-144, 1982 | 22 | 1982 |
| Jihād,'ilm and taṣawwuf: Two Justifications of Action from the Idrīsī Tradition KS Vikør Studia islamica, 153-176, 2000 | 20 | 2000 |
| Jihād in West Africa: A Global Theme in a Regional Setting KS Vikør Muslim Diversity, 80-101, 2013 | 17 | 2013 |
| Sufism and social welfare in the Sahara KS Vikør Social welfare in Muslim societies in Africa, 79-96, 2002 | 17 | 2002 |
| Sufism and colonialism KS Vikør The Cambridge Companion to Sufism, 212-32, 2015 | 14 | 2015 |
| Ei verd bygd på islam: oversikt over Midtaustens historie KS Vikør Samlaget, 2017 | 12 | 2017 |
| The Maghreb since 1800: a short history KS Vikør (No Title), 2012 | 11 | 2012 |
| The origins of the sharia KS Vikør The Ashgate Research Companion to Islamic Law, 13-25, 2016 | 10 | 2016 |
| The Exoteric Aḥmad Ibn Idris B Radtke, J O'Kane, KS Vikør, RS O'Fahey A Sufi's Critique of the Madhāhib and the Wahhābīs, 2000 | 9 | 2000 |
| A TALE OF THREE SHAMBAS SHĀFIʿĪ-IBĀḌĪ LEGAL COOPERATION IN THE ZANZIBAR PROTECTORATE: PART I AK Bang, KS Vikør Sudanic Africa 10, 1-26, 1999 | 9* | 1999 |
| A TALE OF THREE SHAMBAS SHĀFIʿĪ-IBĀḌĪ LEGAL COOPERATION IN THE ZANZIBAR PROTECTORATE: PART I AK Bang, KS Vikør Sudanic Africa 10, 1-26, 1999 | 9 | 1999 |
| Sources for Sanūsī studies KS Vikør Sudanic Africa 1, 1996 | 9 | 1996 |
