SULISTIANTO, S.SOS., MBA, R. Implementasi Diamond Strategy Framework pada Bimbingan Belajar Primagama. Journal of Management and Leadership, [S. l.], v. 1, n. 1, p. 47–56, 2018. Disponível em: https://jurnal.tau.ac.id/index.php/jml/article/view/27. Acesso em: 17 jun. 2025.