Maslan@Baharudin, A., and N. H. Yaacob. “Usaha Lembaga Tabung Haji Menangani Cabaran Pengendalian Hal Ehwal Haji, 1969-1985: The Efforts of Lembaga Tabung Haji in Addressing the Challenges of Handling the Hajj Affairs, 1969-1985”. Perspektif Jurnal Sains Sosial Dan Kemanusiaan, vol. 10, no. 3, Dec. 2018, pp. 113-22, https://ejournal.upsi.edu.my/index.php/PERS/article/view/1798.