Etiubon, R. U. (2013). Simplifying atom-mass-mole relationships in elements and compounds. In G. O. Ojokuku; E. O. Amadi; Hadiza, I. Yero & N. A. Uduchukwu (Eds.). STAN Chemistry Panel Series 9: Strategies for teaching mole concept, gas laws and calculations from chemical equations: A Handbook for Chemistry Teachers (pp. 29-31). MacChin Multimedia Designers, Zaria

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