P. Tangsombatvichit, สุขสอาด P., U. Buranasaksee, and K. Boonlerthirun, “Effects of Vermicompost and Water Fern (Azolla pinnata) on Growth of Green Oak Lettuce (Lactuca sativa)”, Recent Sci. Technol., vol. 13, no. 2, pp. 343–356, Jul. 2021.