TY  - BOOK
AU  - Hutasoit,Marnixius
AU  - Vastenhouw,M.
AU  - Waardenberg,E.H.Van
TI  - Kami membuat alat-alat peladjaran sendiri
PY  - 1953///
CY  - Jakarta
PB  - Djambatan
KW  - Visual education
KW  - Visual aids
KW  - Teaching
KW  - Aids and devices
KW  - Education
KW  - Indonesia
ER  -