Pham, V. H., Nguyen, D. P. T., Tan, H. N. and Nguyen, T. L. P. (2020) “Optimization of condition for pectin extraction from pomelo peel using response surface methodology”, CTU Journal of Innovation and Sustainable Development , 12(1), pp. 50-57. doi: 10.22144/ctu.jen.2020.007.