CLEMENTS, D. H. (2021). Learning and teaching early math: : the learning trajectories approach. Routledge.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCLEMENTS, Douglas H. Learning and Teaching Early Math: : The Learning Trajectories Approach. Routledge, 2021.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCLEMENTS, Douglas H. Learning and Teaching Early Math: : The Learning Trajectories Approach. Routledge, 2021.
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