Co-Authors Abi Suar Adrie Oktavio Afrizal Alfrin Ernest M. Usmany Andi Harmoko Arifin Arie Fitria Arie Fitria Eva Anggra Yunita Fryan Sopacua Loso Judijanto M. Yusuf Bahtiar, M. Yusuf Miftachul Amri Rean Mitasari Rima Rachmawati Suhardi Suhardi Titik Purwati Tomi Apra Santosa Tongam E Panggabean Usmany, Paul