Anugrah FT. Effect of Promotion and Ease of Use on Customer Satisfaction and Loyalty on OVO Application Users. Quant. Econ. Manag. Stud. [Internet]. 2020 Jun. 10 [cited 2026 May 4];1(1):44-50. Available from: https://qemsjournal.org/index.php/qems/article/view/77