Wong, J. T., & Tantengco, M. T. T. (2015). Virtual manipulative for developing number concept readiness among children with intellectual disabilities. College of Education, University of the Philippines Diliman.
Chicago-referens (17:e uppl.)Wong, Jeanette T., och Myra Trinidad Timtiman Tantengco. Virtual Manipulative for Developing Number Concept Readiness Among Children with Intellectual Disabilities. Quezon City: College of Education, University of the Philippines Diliman, 2015.
MLA-referens (9:e uppl.)Wong, Jeanette T., och Myra Trinidad Timtiman Tantengco. Virtual Manipulative for Developing Number Concept Readiness Among Children with Intellectual Disabilities. College of Education, University of the Philippines Diliman, 2015.
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