Mei Lin, Wong, and Zurina Zainal Abidin. “Kinetic Modelling of Solid-Liquid Extraction of Anthocyanins of Gynura Crepioides Leaves”. International Journal of Engineering & Technology, vol. 7, no. 4.14, Dec. 2019, pp. 278-82, https://doi.org/10.14419/ijet.v7i4.14.27581.