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, vol. 2, no. 1 (Agustus-Januari), Aug. 2026, pp. 19-25, doi:10.21831/jsrlm.v2i1.3064.