S. Wannakrairoj and W. Tefera, “In Vitro Chromosome Doubling in Korarima [Aframomum corrorima (Braun) P.C.M. Jansen] Using Colchicine and Oryzalin”, Agr. Nat. Resour., vol. 47, no. 5, pp. 684–694, Oct. 2013.