Mohd Hasrul Shuhari, Muhammad Nasri Hassan Basri, Nur Solehah Mohd Yazid, Siti Hajar Mohamad Yusoff, Norhashimah Yahya, Mohd Manawi Mohd Akib. “The Credibility of Imam Al-Shafi’i in His Journey for Finding Scientific Knowledge”. International Journal of Advanced Science and Technology, Vol. 29, no. 05, June 2020, pp. 13131-9, http://sersc.org/journals/index.php/IJAST/article/view/25911.