Sajok, Aping. “Perhambaan Tradisional Di Borneo Utara Zaman Kesultanan Sulu & Brunei”. Sains Insani 2, no. 2 (September 13, 2018): 20–28. Accessed July 7, 2025. http://sainsinsani.usim.edu.my/index.php/sainsinsani/article/view/33.