Meiza, A., Darwis, S., Gunawan, A. Y., & Fitriana, E. (2020). Quantitative Analysis of Relationship between Three Psychological Parameters Based on Swallowtail Catastrophe Model: A recent perspectives. Theory and Applications of Mathematical Science Vol. 3, 149-157. Retrieved from https://stm1.bookpi.org/index.php/tams-v3/article/view/1117