NGUYEN HUYNH ANH; NGUYEN BA KHOA; NGUYEN HIEN PHONG; NGUYEN PHAN TRI; NGO THI LOAN; NGUYEN THANH TUNG; NGUYEN VAN HUNG. Research and build a testing equipment system for determining paraffin deposition rate of crude oil (cold finger). Petrovietnam Journal, v. 2, p. 41 - 50, 26 Feb. 2021.