Penerapan ISO 14001:2015 pada Institusi Pendidikan Pondok Pesantren: (Studi Kasus di Pondok Pesantren X Yogyakarta) . Jurnal Simki Economic, [S. l.], v. 6, n. 2, p. 311–321, 2023. DOI: 10.29407/jse.v6i2.330. Disponível em: https://jurnal.unpkediri.ac.id/index.php/JSE/article/view/330. Acesso em: 27 feb. 2026.