NGUYEN, Ngoc Thang; PHAM, Duc Duong; VO, Thi Lan Huong. Fabrication of a Visual pH Indicator Based on Cellulosic Materials and Anthocyanin Dyes Extracted from Red Cabbage. Old Journal, [S. l.], n. 125, p. 71–75, 2018. Disponível em: https://jst.vn/index.php/old/article/view/824. Acesso em: 2 aug. 2025.