Coster, Ir. Ch., and M. S. Hardjowasono. “The Influence of Agricultural Crops in Taungya Plantations on the Growth of Teak”. Indian Forester 62, no. 10 (September 30, 1936): 662–662. Accessed December 27, 2025. https://indianforester.co.in/index.php/indianforester/article/view/21113.