Siringam, T., and Narasak Boonmee. “Responses of Red Oak Lettuce (Lactuca sativa L.) Applied Milk Bio-extract Combination with Foliar Application under Hydroponic System”. Thai Journal of Science and Technology, vol. 10, no. 3, Feb. 2022, pp. 276-8, doi:10.14456/tjst.2021.22.