M. Etukudo M, Egbe A. Physiological Studies of Phaseolus vulgaris L. in Medium Irrigated with Different Sources of Water from Otuoke, Bayelsa State, Nigeria. IJSBAR. 2017;36(8):273-280. Accessed September 17, 2025. https://gssrr.org/JournalOfBasicAndApplied/article/view/8552