Mu’azu, K., Ganiyu, A., Alkali, A.S., Ahmed, A.U., Jibia, S.M., Shehu, M. and Adamu, I.U. 2019. Effect of Period and Storage Conditions on Essential Oil Yield And Composition of Eucalyptus Citriodora Leaves. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT. 15, 4 (Dec. 2019), 889-897.