Muhammad, F., A. Abdul Razak, M. Y. Mohd Hussin, and S. A. Awang. “KESANGGUPAN ALUMNI MENYUMBANG KEPADA UNIVERSITI: KAJIAN DALAM KALANGAN GURU-GURU MUSLIM DI JOHOR: Willingness of the Alumni to Contribute to Their University: A Study Among Muslim Teachers in Johor”. Jurnal Syariah, vol. 22, no. 2, May 2014, pp. 259-88, https://ojie.um.edu.my/index.php/JS/article/view/8105.