Marliah, Ai. “UNSUR PENIPUAN USAHA ILEGAL DALAM SKEMA PIRAMIDA”. Wacana Paramarta: Jurnal Ilmu Hukum 20, no. 2 (August 10, 2021): 97–102. Accessed April 20, 2026. https://journalfh.unla.ac.id/index.php/paramarta/article/view/116.