Sumarni, Sri. “Local Wisdom Values As Social Attachment of School and Multicultural Society (the Implementation of Multicultural Education at Muhammadiyah Islamic School Sendangmulyo, Kulon Progo, Yogyakarta)”. International Journal of Engineering & Technology, vol. 7, no. 3.25, Aug. 2018, pp. 649-55, https://doi.org/10.14419/ijet.v7i3.25.17817.