Wardhana, Allan, and Jamaludin Ghafur. “Political Reconstruction of Presidential Threshold Law Judging From the Presidential System and Simplification of Political Parties”. Law Research Review Quarterly 4, no. 3 (August 31, 2018): 741-760. Accessed April 24, 2024. https://journal.unnes.ac.id/sju/snh/article/view/26935.