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শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিQuiroga Olarte, Leidy Johanna, Martha Patricia Bohórquez, এবং Luis Fernando Santa Guzmán. Multi-temporal Analysis of the Peru-Colombia Fluvial Border by Satellite Images Analysis Based on Geographical Objects During the Period 1989-2015. Universidad Pedagógica y Tecnológica de Colombia, 2020.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিQuiroga Olarte, Leidy Johanna, et al. Multi-temporal Analysis of the Peru-Colombia Fluvial Border by Satellite Images Analysis Based on Geographical Objects During the Period 1989-2015. Universidad Pedagógica y Tecnológica de Colombia, 2020.
