Nurjaya Nurjaya,
Chemical Engineering Study Program, Faculty of Engineering, Universitas Negeri Semarang, Semarang, Indonesia,
Indonesia
Gema Aditya Mahendra,
Chemical Engineering Study Program, Faculty of Engineering, Universitas Negeri Semarang, Semarang, Indonesia,
Indonesia
Indah Novi Yarman,
Informatics and Computer Engineering Education Study Program, Faculty of Engineering, Universitas Negeri Semarang, Semarang, Indonesia,
Indonesia