Wanto, Adri. “Sharia, Two Sides of the Same Coin: The Contradictions Between Sharia and Adat (Case Studies of Minangkabau’s Matrilineal and Land Tenure System)”. Walisongo: Jurnal Penelitian Sosial Keagamaan, vol. 25, no. 1, Dec. 2017, pp. 1-40, doi:10.21580/ws.25.1.1833.