M. Sukkariyah, S. Al-Ahmadiyah ‎, and O. Sukkatiyah, “Relationship between the Socio-economic Level of ‎Parents and the Academic and Self-concept of ‎Children: Methology of Structural Equation ‎Modeling”, JJES, vol. 18, no. 4, pp. 613–627, Apr. 2021.