Arman A, E. Barlian, S. Fatimah, Heldi, and I. Umar. “Ecological Theory and Its Application, Ecology Relationships and Other Science, and Approaches to Human Ecology”. Central Asian Journal of Literature, Philosophy and Culture, Vol. 2, no. 7, July 2021, pp. 9-16, doi:10.47494/cajlpc.v2i7.175.