KIAY DEMAK, Y.; TINANGON, J. J.; MAWIKERE, L. ANALISIS PIUTANG TAK TERTAGIH BERDASARKAN UMUR PIUTANG PADA PT. AIR MANADO. GOING CONCERN : JURNAL RISET AKUNTANSI, [S. l.], v. 13, n. 04, 2018. Disponível em: https://ejournal.unsrat.ac.id/v3/index.php/gc/article/view/21151. Acesso em: 7 jan. 2025.