Singh, Ranjeet, G. S. Goraya, Charan Singh, Shalindra Kumar, and Surinder Kumar. 2001. “Mortality of Chir Pine Trees by Insect Borers in Morni Hills , Haryana - a Case Study”. Indian Forester 127 (11):1279-86. https://doi.org/10.36808/if/2001/v127i11/3029.