Kiyiapi, Catherine et al. Let's Do Mathematics Activities Grade 3 / Learner's Book. - 1st ed. - Nairobi, Kenya : Oxford University Press East Africa Ltd. 2018 - ill. col. 166 p. 17.5 cm ISBN: 9780195747027 Standard Tech. Report. No.: Nat. Bib. Agency Control No.: KeNaShofco Dewey Class. No.: 500.510