Ikhsan, Fahrudi Ahwan, Fahmi Arif Kurnianto, Bejo Apriyanto, and Elan Artono Nurdin. “EFFORTS TO IMPROVE THE COMPETENCY OF PROFESSIONALISM TEACHER IN JEMBER REGENCY: Fahrudi Ahwan Ikhsan, Fahmi Arif Kurnianto, Bejo Apriyanto , Elan Artono Nurdin”. Geosfera Indonesia 1, no. 1 (December 14, 2017): 16–21. Accessed April 29, 2025. https://geosfera.jurnal.unej.ac.id/index.php/GEOSI/article/view/6191.