1 1 50 Lumastari Ajeng Wijayanti Primary Author Dadang Darmawan Primary Author Karolus Ngambut Primary Author Dian Agnesa Sembiring Primary Author Dian Jayantari Putri K. Hedo Primary Author Patemah Primary Author Pratiwi Ramlan Primary Author Susi Susilawati Primary Author Muh Risal Tawil Primary Author Febriantika Primary Author Dwi Astuti Sih Apsari Primary Author mixed material 9786231983244 Padang PT GLOBAL EKSEKUTIF TEKNOLOGI 2023 Capture.JPG.JPG