Maleta, B. P., and K. O. Sood. “Physical Workload and Productivity in Timber Harvesting a Case Study in the Mountain Forests of West Bengal”. Indian Forester 110, no. 3 (March 1, 1984): 274–292. Accessed July 10, 2025. https://indianforester.co.in/index.php/indianforester/article/view/10474.