Abdul Malik, Ahmad Badruddin, Mary-Jane Wood, Sonia Vernanda, Gladys Putri, Ifah Shandy, Darlene Sitorus, and Delia Tamim. “Navigating the Post-ETF Paradigm: An Integrative Multi-Factor Model for Projecting Bitcoin’s 2025 Market Cycle Apex”. Enigma in Economics, Vol. 3, no. 1, June 2025, pp. 50-65, https://enigma.or.id/index.php/economy/article/view/91.