Giawa, Relahati, and Liharman Saragih. “Analisis Resources Based View (RBV) Studi Kasus: Pada Yayasan Pendidikan GKPS”. Manajemen: Jurnal Ekonomi, vol. 2, no. 1, May 2020, pp. 1 – 17, https://doi.org/10.36985/qqst0258.