This author has not been identified. Look up 'Ahmad Gamal' in GoogleThis author has not been identified. Look up 'Ari Wibisono' in GoogleThis author has not been identified. Look up 'Satrio Bagus Wicaksono' in GoogleThis author has not been identified. Look up 'Muhammad Alvin Abyan' in GoogleThis author has not been identified. Look up 'Nur Hamid' in GoogleThis author has not been identified. Look up 'Hanif Arif Wisesa' in GoogleThis author has not been identified. Look up 'Wisnu Jatmiko' in GoogleThis author has not been identified. Look up 'Ronny Ardhianto' in Google