“The Ultimate 14-Day Challenge: The Journey to Becoming an Indonesian U23 National Football Team Player”. Jurnal Ilmiah Adiraga : Jurnal Penelitian Olahraga 10, no. 2 (November 29, 2024): 44–57. Accessed August 5, 2026. https://jurnal.unipasby.ac.id/adi_raga/article/view/9801.