Anh Tuan, Duong, 		Thanh Huong, Nguyen Thi, 		Thi Minh Hai, Nguyen, 		Anh Tuan, Pham, 		Thi My Hao, Dinh, AND 		Cho, Sunglae.
" Temperature Gradient: A Simple Method  for Single Crystal Growth" <em>VNU Journal of Science: Mathematics - Physics</em> [Online], Volume 35 Number 1 (26 March 2019)