YULIUS TRI HARYANTO; HARI MUHARAM; 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. Interdisciplinary Journal of Global and Multidisciplinary, [S. l.], v. 2, n. 2, p. 118–128, 2026. Disponível em: https://jurnal-ijgam.or.id/index.php/IJGAM/article/view/205. Acesso em: 2 apr. 2026.