Estrella, Andrea. The Effects of Voluntary Sustainability Standards in the Economy of Smallholder Farmers in Latin America: An Investigation of the Impact Pathways of Sustainability Standards Leading to Improved Economic Outcomes for Certified Coffee Producers. Vol. Band 29. Wissenschaftliche Schriften der Universität Münster, Reihe VII: Sozialwissenschaften. Münster: TESTINSTANZ: Wissenschaftliche Schriften der Universität Münster, 2020. Accessed May 7, 2026. https://www.uni-muenster.de/EbooksTestInstallation/index.php/series/catalog/book/281.