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Survey on the “Last Mile” Delivery in Southwest Border Areas :a case study of Lancang County, Pu'er City, Yunnan Province
NA Jia, wu Mengqi', GAO Guibo", Ll Wei', Ll xiangying
Journal of Kunming Metallurgy College . 2025, (4): 1 .  DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０２５