Kayla Meidina Fadyasari, and Muthoifin. “Sharia Compliance of Ijarah Contracts in Umrah Plus Entertainment Packages: Formula One (F1) Phenomenon”. proceedings.icesy 1, no. 01 (February 17, 2026). Accessed April 18, 2026. https://proceedings.icesy.org/index.php/PI/article/view/31.