Musa, Rosidah. “Formulating Direct Sales Customers’ Satisfaction Strategies”. Gading Journal for the Social Sciences (e-ISSN 2600-7568) 9, no. 01 (June 21, 2017): 1-25. Accessed May 22, 2026. https://gadingssuitm.com/index.php/gadingss/article/view/58.