TY - BOOK AU - Riungu, Margaret Njiru TI - Teaching factors affecting learning of mathematics to visually impaired Pre-school learners: a case study of St. Lucy school for the visually impaired, Imenti South district, Meru county, Kenya AV - THE QA 135.5 .R58 2013 PY - 2013/// CY - Chuka PB - Chuka University KW - Mathematics--study and teaching ER -