Cowan, R; (1987) Assessing children's understanding of one-to-one correspondence. British Journal of Developmental Psychology , 5 (2) pp. 149-153. 10.1111/j.2044-835X.1987.tb01050.x .
from #MedicinebyAlexandrosSfakianakis via xlomafota13 on Inoreader http://ift.tt/2pgM9Gu
via IFTTT
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου