TY  - BOOK
ED  - United Nations Educational, Scientific and Cultural Organisation.
TI  - Sumber2 ilmu pengetahuan alam (natural science)
PY  - 1965///
CY  - Djakarta
PB  - Bhratara
KW  - Science
KW  - Study and teaching
N1  - Terjemahan dari:'UNESCO source book for science teching'
ER  -