Bansal, A. K., and Peter A. Murtha. “Use of Normal-Colour Aerial Photographs in Collection of Data for Reforestation Assessment”. Indian Forester 115, no. 10 (October 1, 1989): 724–732. Accessed October 7, 2025. https://indianforester.co.in/index.php/indianforester/article/view/9113.