3 1 20 Irawan Primary Author Suripno Primary Author Muh Kadarisman Primary Author Prasadja Ricardianto Primary Author Susanty Handayani Primary Author Prima Widiyanto Primary Author Heri Subagyo Primary Author mixed material 24567361 INDIA International Journal of Scientific Engineering and Science (IJSES) 2021 Yolla Ayutia Primary Author OKY YUNNNA IRAWAN Additional Author Yosi Pahala Additional Author mixed material 2407635X Jakarta ITL Trisakti 2019 Rifqi Irawan Primary Author Selfi Primary Author Reni Dian Octaviani Primary Author Ratna Suminar Primary Author mixed material 26225778 Jakarta ITL Trisakti 2020