Anthonia U. Nwobi, Felicia O. Mbagwu, Charles C. Onwuadi, Asogu Ogbonnaya, Rufina Nwachukwu, Ikechukwu Okafor, Victoria A. Ifeanacho, Maryrose I. Otegbulu, Eunice R. Idakpo and John Yahaya Yakubu
Journal of Engineering and Applied Sciences 12 ( 10 SI ): 9028 - 9034 , 2017