Ref1

https://www.researchgate.net/profile/John_Atoyebi2/publication/318983622_Evaluation_of_Nutrient_Parameters_of_Selected_African_Accessions_of_Bambara_Groundnut_Vigna_subterranea_L_Verdc/links/59897e1e4585156058588ba4/Evaluation-of-Nutrient-Parameters-of-Selected-African-Accessions-of-Bambara-Groundnut-Vigna-subterranea-L-Verdc.pdf