Yulius Tri Haryanto, Hari Muharam, and Agus Setyo Pranowo, “PROMOTION STRATEGY & PRODUCT DIVERSIFICATION IN ORDER TO IMPROVE COMPETITIVE ADVANTAGE AND ITS IMPLICATIONS ON PERFORMANCE MARKETING BPR ACROSS THE REGENCY AND SUKABUMI CITY”, IJGAM, vol. 2, no. 2, pp. 118–128, Apr. 2026, Accessed: Apr. 02, 2026. [Online]. Available: https://jurnal-ijgam.or.id/index.php/IJGAM/article/view/205