Pre-vocational education in Sri Lanka /
Diyasena, W.
Pre-vocational education in Sri Lanka / W. Diyasena. - París : UNESCO, 1976. - 50 p. - Experiments and innovations in education ; 28 .
9231014048
373.58 (548.7) =20 DIY No. 28
Pre-vocational education in Sri Lanka / W. Diyasena. - París : UNESCO, 1976. - 50 p. - Experiments and innovations in education ; 28 .
9231014048
373.58 (548.7) =20 DIY No. 28