Masi, S., V. Narat, A. Todd, and S. Krief. “How Do Great Apes Acquire Information on Unusual Feeding Behaviors? A Windows to Understand Origins of Self-Medication in Humans”. Journal of Biological Research - Bollettino della Società Italiana di Biologia Sperimentale 85, no. 1 (November 15, 2012). Accessed October 31, 2020. https://pagepressjournals.org/index.php/jbr/article/view/4146.