Febriyani, S.D. and Muhammad Fatih Humam 2026. Formulating Digital Service Standards: A Case Study of WhatsApp Channel Services at PT. Remen Jawi Yogyakarta. Journal of Sport Recreation and Leisure Management. 2, 1 (Agustus-Januari) (Aug. 2026), 19–25. DOI:https://doi.org/10.21831/jsrlm.v2i1.3064.