This author has not been identified. Look up 'Ronaldo Serrano' in GoogleThis author has not been identified. Look up 'Ckristian Duran' in GoogleThis author has not been identified. Look up 'Marco Sarmiento' in GoogleThis author has not been identified. Look up 'Tuan-Kiet Dang' in GoogleThis author has not been identified. Look up 'Trong-Thuc Hoang' in GoogleThis author has not been identified. Look up 'Cong-Kha Pham' in Google