Sitompul, Roswita, A Alesyanti, H Hartono, and Robbi Rahim. 2018. “Legal Protection for Children Born from Unregistered Marriage in Medan City and Its Socialization Through Website”. International Journal of Engineering & Technology 7 (2.14): 246-50. https://doi.org/10.14419/ijet.v7i2.12.14685.