Production Efficiency and Quality of Mustard Greens (Brassica juncea (L.) Czern) Cultivated According to the Vietnamese Good Agricultural Practice (VietGAP) Guideline in Thai Nguyen City. AJAFS [Internet]. 2014 Aug. 14 [cited 2026 Mar. 5];2(4). Available from: https://ajouronline.com/index.php/AJAFS/article/view/1602