Ramanujam, M. Eric, and Joss Brooks. “Wildlife Art and Illustration – Combining Black and White Ink Drawings With Colour: Some Experiments in Auroville, India”. Journal of Threatened Taxa 13, no. 11 (September 27, 2021): 19671–19674. Accessed January 21, 2022. https://www.threatenedtaxa.org/index.php/JoTT/article/view/7455.