Irma Fatmawati, et al. “Implications of Changes in the Role of Mamak on the Legitimacy of Minangkabau Customary Marriages: A Socio-Legal Study in Rantau and Ranah”. International Journal of Economic, Technology and Social Sciences (Injects), vol. 6, no. 2, Oct. 2025, pp. 329-40, doi:10.53695/injects.v6i2.1444.