Mac, The Vinh, Ngoc Minh Truong, Thi Huong Nguyen, and Thi Minh Tu Nguyen. “Authenticating the Origin of Pakchoi Using Metal Content in the Edible Part of Pakchoi at Hanoi Market, Vietnam”. JST: Engineering And Technology For Sustainable Development 35, no. 2 (April 15, 2025): 26–32. Accessed June 18, 2025. https://jst.vn/index.php/etsd/article/view/412.