Opel, A., Zaman, S. S., Khanom, F., Aboud, F. E., & Institute of Education Development, B. U. (2016). Evaluation of a mathematics program for preprimary children in rural Bangladesh. © 2012 Elsevier Ltd.
Lua i Stíl Chicago (17ú heag.)Opel, Aftab, Syeda Sazia Zaman, Ferdousi Khanom, Frances E. Aboud, agus BRAC University Institute of Education Development. Evaluation of a Mathematics Program for Preprimary Children in Rural Bangladesh. © 2012 Elsevier Ltd, 2016.
Lua MLA (8ú heag.)Opel, Aftab, et al. Evaluation of a Mathematics Program for Preprimary Children in Rural Bangladesh. © 2012 Elsevier Ltd, 2016.
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