Duc, Dang, 		Bach, Dao, 		Kien, Nguyen, 		Phong, Truong, 		Dung, Mai, 		Minh, Truong, 		Phuong, Pham, 		Hung, Le, AND 		Hung Vuong, Pham.
" Phase Tailoring of Dense Tantalum Films  for Improving Hardness of Titanium Implants Using Negative Substrate Bias During DC Sputtering at Low Temperature" <em>VNU Journal of Science: Mathematics - Physics</em> [Online], Volume 41 Number 1 (25 March 2025)