Manurung, Immanuel Joyson Benaya, and Andi Hakim Lubis. “Legal Certainty in the Determinant Application of Customary Law in Indonesian National Criminal Law”. Haqqiyyah: Journal of Islamic and Legal Studies, vol. 1, no. 1, July 2025, pp. 16-26, https://journal.arfadigitech.com/index.php/haqqiyyah/article/view/2.