Eko Alamsyah, et al. “A Systematic Literature Review of Product Innovation, Digital Marketing, and Business Networking in Enhanching MSME Competities Through Digital Customer Engagement”. Harmony Management: International Journal of Management Science and Business, vol. 2, no. 4, Dec. 2025, pp. 165-78, doi:10.70062/harmonymanagement.v2i4.495.