Anwar, Khairil, Retno Dewanti, and Tjia Fie Chu. “Accompaniment the Successful Strategies Based on Research of Customer Loyalty ”. SEEIJ (Social Economics and Ecology International Journal) 3, no. 2 (October 23, 2019): 43–50. Accessed May 4, 2025. https://journal.binus.ac.id/index.php/SEEIJ/article/view/6962.