Tanjung IU, Arminsyah. THE CONSTITUTIONAL PROBLEM OF PERPPU IN THE INDONESIAN LEGAL SYSTEM: TENSIONS BETWEEN EXECUTIVE AND LEGISLATIVE AUTHORITY FROM THE PERSPECTIVE OF CHECKS AND BALANCES. PENALAW [Internet]. 2026 May 20 [cited 2026 Jul. 23];4(1). Available from: https://penajournal.com/index.php/PENALAW/article/view/308