KHOUNVILAY, B., SALITXAY, T., LOKHAMHEUANG, V., PHOVISAY, S. and BANDAVONG, V. 2023. Investigation of Antioxidant from Extracts Leaf, Stem, Fruit of Morinda citrifolia . Souphanouvong University Journal Multidisciplinary Research and Development . 9, 3 (May 2023), 177–185.