S. S. Bargali, and R. P. Singh. 1997. “<em>PINUS</em> <em>PATULA</Em> PLANTATIONS IN KUMAUN HIMALAYA. I. DRY MATTER DYNAMICS”. Journal of Tropical Forest Science (JTFS) 9 (4):526-35. https://jtfs.frim.gov.my/jtfs/article/view/1707.