Saichol Katsa, and Peeradet Tongumpai. “Opening Bud-Cut Standard Carnations Following Truck Shipment from Hoghlands to Bangkok”. Agriculture and Natural Resources, vol. 21, no. 3, Sept. 1987, pp. 301-5, https://li01.tci-thaijo.org/index.php/anres/article/view/242634.