Armiati, Sari, Khairaningrum Mulyati, and Adi Tiya Wiranda. “ANALISIS DAN RANCANGAN SISTEM INFORMASI MONITORING PIUTANG PELANGGAN BISNIS MENGGUNAKAN WHATSAPP GATEWAY API ”. LAND JOURNAL 5, no. 1 (January 12, 2024): 25-33. Accessed July 21, 2025. https://ejurnal.ulbi.ac.id/index.php/jurnalland/article/view/3146.