Nihaya Alivia Coraima Dewi, Resmi, F. ., & Ngastiti, P. T. B. (2021). Optimization of Balanced Menu for Pregnant Women in Grobogan-Central Java using Simplex Method. Jurnal Matematika MANTIK, 7(1), 59–66. https://doi.org/10.15642/mantik.2021.7.1.59-66