Putri Dian Antika, Jauharotina Alfadhilah. Effectiveness of Travel Administration Management in Meeting the Requirements for Organizing Hajj and Umrah in Improving Congregation Services. Kawakib [Internet]. 2026 Apr. 25 [cited 2026 Jun. 5];2(3):104-12. Available from: https://kawakib.kjii.org/index.php/i/article/view/41