Pascual, M. L. D., J. H. Ruiz, J. A. Posas, and M. C. Niño. “Pollen Viability and Incompatibility in Indigenous Rice Bean (Vigna Umbellata (Thunb.) Ohwi & Ohashi)”. Plant Science Today, vol. 9, no. 1, Jan. 2022, pp. 157–166, doi:10.14719/pst.1375.