NutthapornnitchakulS., SonjaroonW., PutthisawongN., ThumthuanN., TasanasuwanP., and JantasuriyaratC. “Effect of Drought Stress on Proline Gene Expression, Enzyme Activity, and Physiological Responses in Thai Mulberry (Morus spp.)”. HAYATI Journal of Biosciences, Vol. 31, no. 3, Feb. 2024, pp. 559-71, doi:10.4308/hjb.31.3.559-571.