Hamid Abdillah

lecture engineering repairing repair maintenance kuliah mechanical engineering teknik listrik perbaikan perawatan manufacturing politeknik mesin frais machine milling electronics electricity learning computer aided design vocational education self diri kepribadian motorlistrik 3phase 1phase motor education runningmaintenance préventif student learn case study school motivation students university strategy study paper oral presentation ppt presentation bussiness technopreneur cad education and training applied technology technology applied technologi