“PENGARUH PEMASARAN RELASIONAL DAN PROMOSI TERHADAP LOYALITAS NASABAH TABUNGAN SIMAS GOLD PADA PT. BANK SINARMAS, TBK CABANG MANADO”, JAP, vol. 4, no. 47, Apr. 2018, Accessed: Aug. 01, 2026. [Online]. Available: https://ejournal.unsrat.ac.id/v3/index.php/JAP/article/view/17896