[1]
Martin, F.W. and Delpín, H. 1969. Techniques and Problems in the Propagation of Sapogenin-bearing Yams from Stem Cuttings. The Journal of Agriculture of the University of Puerto Rico. 53, 3 (Jul. 1969), 191–198. DOI:https://doi.org/10.46429/jaupr.v53i3.11158.