Masani, N. J. “Simple Calculations in the Design of Forest Bridges of Stock Spans of 15, 20, 30 and 40 Feet - Part V(b) (Analytical Method)”. Indian Forester 77, no. 2 (February 1, 1951): 130–148. Accessed August 21, 2025. https://indianforester.co.in/index.php/indianforester/article/view/23284.