A. . Toyoda, K. . Matsudaira, T. . Maruhashi, S. . Malaivijitnond, and Y. . Kawamoto, “Highly Versatile, Non-Invasive Method for Collecting Buccal DNA from Free-Ranging Non-Human Primates”, JTBC, vol. 18, pp. 251–267, Oct. 2021.