Febriyani, Silvia Dewi, and Muhammad Fatih Humam. “Formulating Digital Service Standards: A Case Study of WhatsApp Channel Services at PT. Remen Jawi Yogyakarta”. Journal of Sport Recreation and Leisure Management 2, no. 1 (Agustus-Januari) (August 2, 2026): 19–25. Accessed August 4, 2026. https://journal.uny.ac.id/publications/jsrlm/article/view/3064.