Nwankwo, I. I. M.; Nwaigwe, G. O.; Aguwa, U. O.; Okereke, A. C.; Amanze, N. J. (30 de junio de 2019). «Fortification of sweet potato progenies for enhanced root dry matter and micro-nutrient density through genetic recombination». Journal of Agricultural Science and Practice4 (3): 86-93. ISSN2536-7072. doi:10.31248/jasp2019.143.
Nwankwo, I. I. M.; Nwaigwe, G. O.; Aguwa, U. O.; Okereke, A. C.; Amanze, N. J. (30 de junio de 2019). «Fortification of sweet potato progenies for enhanced root dry matter and micro-nutrient density through genetic recombination». Journal of Agricultural Science and Practice4 (3): 86-93. ISSN2536-7072. doi:10.31248/jasp2019.143.