Sitohang R, Aryeni I, Maulidiah HM, Humaera R, Toar H, Siregar JM. Formalin Detection System in Fish with HCHO Sensor and pH Sensor Using Fuzzy Logic Method. JAEE [Internet]. 2026 Jun. 29 [cited 2026 Sep. 12];10(1):1-9. Available from: https://jurnal.polibatam.ac.id/index.php/JAEE/article/view/11618