Nabila S, Asyfiradayati R. Relationship Between Knowledge Level of White Tofu Traders and the Presence of Formalin in Kartasura Traditional Market, Sukoharjo Regency. jk [Internet]. 2025 May 15 [cited 2025 Nov. 21];18(1):99-107. Available from: http://journals2.ums.ac.id/jk/article/view/6383