Haekase Y, Fakhruddin F, Yulianto A. Entrepreneurial Instinct of Principal to Manage Production Activities in Christian Pandhega Jaya High School. EM [Internet]. 23Dec.2020 [cited 27Sep.2024];9(2):241-7. Available from: https://journal.unnes.ac.id/sju/eduman/article/view/39750