NGUYEN VAN HUYNH; PHAM VAN HAI; DUONG THI THU HANG; BUI HA TRUNG; CHU VAN TUAN; TRAN TRUNG; DO THI ANH THU; HO TRUONG GIANG. DEVELOPMENT OF NH 3 GAS SENSOR OPERATING AT ROOM TEMPERATURE BASED ON POLYPYRROLE NANO FILMS. UTEHY Journal of Science and Technology, v. 18, p. 30-33, 10 Jul. 2018.