Akmal AK, Jumelia Ardika, Dahnil Ikhwan, Zulia Ananda. Application of Six Sigma to Reduce Defect in Tofu Products at UD Tahu Dua Saudara. JI [Internet]. 2026Apr.7 [cited 2026Apr.18];11(1):203-10. Available from: https://inotera.poltas.ac.id/index.php/inotera/article/view/558