TY  - BOOK
AU  - Hattie,John
ED  - Routledge Taylor & Francis Group
TI  - Visable learning: a synthesis of over 800 meta-analyses relating to achevement 
SN  - 9780415476188
U1  - 370.1523 23
PY  - 2009///].
CY  - London: , New York
PB  - Routledge, 
KW  - Teaching
KW  - Teachers
KW  - Μάθηση
KW  - Εκπαιδευτικοί
KW  - Επιμόρφωση
KW  - Μαθησιακές ικανότητες
KW  - Learning
N1  - Includes bibliographical references (p. [301]-374); Includes index (p. [375]-378)
ER  -