Ng, K. L., and C. Y. Cheok. “Evaluation of Thermal Degradation Kinetic Order of Anthocyanins Extracted from Garcinia Mangostana L. Rind”. Progress in Energy and Environment, vol. 13, May 2020, pp. 16-25, https://akademiabaru.com/submit/index.php/progee/article/view/1064.