Li, Najia, et al. “Exogenously Applied 5-Aminolevulinic Acid Mediated Physiochemical Regulations Ameliorate Weak Light Stress in Tobacco Seedlings”. Bangladesh Journal of Botany, vol. 48, no. 2, June 2019, pp. 353-8, doi:10.3329/bjb.v48i2.47681.