D. S. . Meena, Akash, K. . Bijlwan, and B.S. Bhandari, “Characteristics and Quality Assessment of Oleoresin Production through Bore-hole Method in Chir-pine Under Narendranagar Forest Division, Uttarakhand, India”, IJSEI, vol. 4, no. 2, pp. 126-132, Aug. 2023.