Hidayatullah, M. S. “IMAM SHAFI’I AS MUJTAHID AND IMAM OF FIQH SCHOOLS (HISTORICAL, JURIDICAL AND SOCIOLOGICAL STUDIES)”. Al Yasini : Jurnal Keislaman, Sosial, Hukum Dan Pendidikan, Vol. 5, no. 2, Nov. 2020, pp. 398-23, https://ejournal.kopertais4.or.id/tapalkuda/index.php/alyasini/article/view/3965.