Castro, Oneide Ferreira de Andrade, and Arnóbio Gonçalves de Andrade. 1998. “Sweet-Potato Callus Culture and Behaviour in Saline Medium”. Pesquisa Agropecuaria Brasileira 33 (1):21-27. https://doi.org/10.1590/S1678-3921.pab1998.v33.4821.