Kaul, O.N., and R.P. Sharma. “Diagnosis of Mineral Deficiencies in Chir (pinus Roxburghii) Seedlings”. Indian Forester 89, no. 9 (September 1, 1963): 631–637. Accessed December 4, 2025. http://indianforester.co.in/index.php/indianforester/article/view/24928.