BUDI SUHATI LESTARI; SOWIYAH; DEDY HERMANTO KARWAN. The Principal’s Role as A Supervisor in Improving Teacher Performance at SDIT Baitul Jannah Bandar Lampung Performance . International Journal of Science, Technology & Management, [S. l.], v. 1, n. 4, p. 246–251, 2020. DOI: 10.46729/ijstm.v1i4.72. Disponível em: https://ijstm.inarah.co.id/index.php/ijstm/article/view/72. Acesso em: 24 mar. 2026.