Harun, Muhammad. “Philosophical Study of Hans Kelsen’s Thoughts on Law and Satjipto Rahardjo’s Ideas on Progressive Law”. Walisongo Law Review (Walrev) 1, no. 2 (October 30, 2019): 195–220. Accessed December 28, 2024. https://journal.walisongo.ac.id/index.php/walrev/article/view/4815.