@book{91896,
	author = {a Ibrahim, Ramatu},
	title = {\a Comparative Study of Leaf Morphology and Stomatal Ontogeny of Some Species of Senna in Zaria and New Bussa, Nigeria},
	publisher = {\b Department of Botany, A.B.U. Zaria,},
	year = {\c 2021.},
	address = {\a Zaria:}
}