Fransisca H.Manueke, and Rio Hasan. “MEASURING THE ATTRACTIVENESS OF MEMBERSHIP CARDS IN MAINTAINING CUSTOMER LOYALTY (CASE STUDY AT INDOMARET FRESH MAUMBI WATUTUMOU STORE)”. Akrab Juara : Jurnal Ilmu-ilmu Sosial 10, no. 1 (February 5, 2025): 275–285. Accessed January 28, 2026. https://www.akrabjuara.com/index.php/akrabjuara/article/view/2480.