Mohd Salleh, M.M., Yasmin Hanani Mohd Safian, Syaza Azhari and Hussein ’Azemi Abdullah Thaidi 2023. Penggunaan Semula Air Kumbahan Mutanajjis Untuk Tujuan Taharah: Satu Analisa Fiqah dan Kajian Sains Berdasarkan Amalan Rawatan Kumbahan oleh Indah Water Konsortium (IWK): [The reuse of treated mutanajjissewage water for the purpose of ṭahārah: a fiqh analysis and scientific study based on sewage water treatment practice by Indah Water Consortium (IWK) Malaysia]. Ulum Islamiyyah. 35, 01 (Apr. 2023), 19–36. DOI:https://doi.org/10.33102/uij.vol35no01.472.