1. Politeknik Negeri Sriwijaya,Electrical Maintenance,Cement Mill, PT. Semen Baturaja, Tbk, Baturaja, Ogan Komering Ulu, Sumatera Selatan Applied Master of Renewable Energy Engineering,Palembang,Indonesia
2. Politeknik Negeri Sriwijaya,Electrical Engineering Department,Palembang,Indonesia
3. Politeknik Negeri Sriwijaya,Renewable Energy Department,Palembang,Indonesia