Sugiyono, Sugiyono, Wahyu Hardyanto, and Masrukan Masrukan. 2019. “Developing Academic Supervision Model Assisted by The Information System Management on Geography Teachers of Senior High School in Pekalongan Regency”. Educational Management 8 (1), 88-96. https://journal.unnes.ac.id/sju/eduman/article/view/29194.