Putra, Suriadi Kusna. “KAJIAN HUKUM TENTANG PIUTANG TIDAK TERTAGIH ATAS PERJANJIAN PENJUALAN PRODUK SECARA KREDIT PADA BADAN USAHA MILIK NEGARA (BUMN): A Legal Study on Uncollectible Debts in Credit Sales Agreements at State-Owned Enterprises (SOEs)”. Asy-Syari’ah 20, no. 1 (September 18, 2018): 71–84. Accessed December 19, 2025. http://103.55.33.27/index.php/asy-syariah/article/view/2986.