Multiple class teaching in prmary schools :
UNESCO.
Multiple class teaching in prmary schools : A methodological guide / UNESCO. - Thailand : UNESCO, 1988 - 69 p. : ill. ; 27 cm.
371.3 UNE
Multiple class teaching in prmary schools : A methodological guide / UNESCO. - Thailand : UNESCO, 1988 - 69 p. : ill. ; 27 cm.
371.3 UNE