Thực đơn
Bán hàng gia tăng NguồnThực đơn
Bán hàng gia tăng NguồnLiên quan
Bán Bánh mì Việt Nam Bán đảo Krym Bán đảo Đông Dương Bánh chưng Bánh nướng chảo Bánh trung thu Bánh mì thanh long Bán đảo Bánh cuốnTài liệu tham khảo
WikiPedia: Bán hàng gia tăng http://www.business.com/ecommerce/quick-tips-for-u... http://www.businessdictionary.com/definition/upsel... http://www.finnairgroup.com/mediaen/mediaen_7.html... http://www.hoovers.com/lc/sales-marketing-educatio... http://www.maximizer.com/blog/5-basic-upselling-te... http://www.socialspotwifi.com/ https://www.shopify.co.nz/blog/17579484-how-to-inc... https://www.consumer.org.nz/articles/consumer-guar... https://web.archive.org/web/20150529195812/http://... https://web.archive.org/web/20171206151001/http://...