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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Wong, Jeanette T., و 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.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Wong, Jeanette T., و 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.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.