Angombe, Simon T, and Rosemary N Shikangalah. “Pterocarpus Angolensis Growth Rings and Precipitation: A Comparison Between Zambezi and Otjozondjupa Region, Namibia”. International Science and Technology Journal of Namibia 14 (May 7, 2021): 34–45. Accessed March 28, 2024. https://journals.unam.edu.na/index.php/ISTJN/article/view/1539.