Mu’ammar Nurkhalis Akmal, Muhammad Ulama, and Ahmad Ridwan. “IMPLEMENTATION OF AFTERLIFE INVESTMENT IN EDUCATION AT NURUL WAHID AL-ISLAMI FOUNDATION”. Jurnal Scientia, Vol. 12, no. 03, June 2023, pp. 3452-7, https://infor.seaninstitute.org/index.php/pendidikan/article/view/2919.