«About GESCA | Gresham-Ebetsu Sister City Association | Gresham, OR». web.archive.org. 28 de octubre de 2020. Archivado desde el original el 28 de octubre de 2020. Consultado el 16 de marzo de 2021. «The Gresham-Ebetsu Sister City Association is a non-profit, volunteer based organization that develops strong bonds of friendship with its sister city Ebetsu by promoting cultural education and understanding through student exchange and cultural events. The Gresham Sister City Association was formed in 1977 between Gresham, Oregon and Ebetsu, Japan. It expanded to add Sokcho, South Korea in 1985, and later Owerri, Nigeria in 1991. In 2014 it split into separate sister city organizations. Mission Statement: “To foster friendships with our sister city that promote and strengthen our educational, economic and cultural ties to enrich the lives of our citizens.”».
«About GESCA | Gresham-Ebetsu Sister City Association | Gresham, OR». web.archive.org. 28 de octubre de 2020. Archivado desde el original el 28 de octubre de 2020. Consultado el 16 de marzo de 2021. «The Gresham-Ebetsu Sister City Association is a non-profit, volunteer based organization that develops strong bonds of friendship with its sister city Ebetsu by promoting cultural education and understanding through student exchange and cultural events. The Gresham Sister City Association was formed in 1977 between Gresham, Oregon and Ebetsu, Japan. It expanded to add Sokcho, South Korea in 1985, and later Owerri, Nigeria in 1991. In 2014 it split into separate sister city organizations. Mission Statement: “To foster friendships with our sister city that promote and strengthen our educational, economic and cultural ties to enrich the lives of our citizens.”».