N. Singh & T.C. Pokhriyal. “NITROGEN FIXATION AND NODULATION BEHAVIOUR IN RELATION TO SEED SOURCE VARIATIONS IN <em>DALBERGIA</em> <em>SISSOO</Em> SEEDLINGS”. Journal of Tropical Forest Science (JTFS), vol. 14, no. 2, Aug. 2022, pp. 198-06, https://jtfs.frim.gov.my/jtfs/article/view/1278.