Bee, K. G., & Won, J. Y. (2023). IMPLEMENTATION OF BIORHYTHM GRAPH WITH TRIGONOMETRIC FUNCTIONS USING PYTHON: Received: 16th December 2022; Revised: 17th February 2023, 13th March 2023; Accepted: 14th April 2023. MATTER: International Journal of Science and Technology, 9, 66–73. https://doi.org/10.20319/mijst.2023.9.6673