“Von Hassel and the Invisible Consequences of Rubber Extractivism in Apuntes De Viaje En El Oriente Peruano (1905)”. Peruvian Amazon, no. 38 (July 31, 2025): 121–150. Accessed September 21, 2025. https://amazoniaperuana.caaap.org.pe/index.php/amazoniaperuana/article/view/665.