Rahardja, F., Choi, L. K., Wijaya, R. C., & Sunarjo, R. A. (2025). Gamification in Digital Startups: Enhancing User Engagement and Business Growth. Startupreneur Business Digital (SABDA Journal), 4(1), 1–11. https://doi.org/10.33050/sabda.v4i1.639