Liana, T. et al. 2023. Production of Biosurfactant from Frangipani Flower Extract (Plumeria rubra) as an Eco-friendly Detergent in a Science Learning Project. Journal of Science Education Research. 7, 1 (Apr. 2023), 27–38. DOI:https://doi.org/10.21831/jser.v7i1.56203.