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| 008 | 981208s1974 my 00 eng | ||
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| 100 | 0 | _aUmpai Thowong | |
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_aAcids and bases : _ba teaching unit for the lower secondary school / _cby Umpai Thowong ; course supervisor L. E. Howell ; consultants J. Edwards, R. G. Shave |
| 260 |
_aPenang : _bSEAMEO Regional Centre for Edu. in Science and Mathematics, _c1974 |
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_a113 p. : _bill. ; _c28 cm. |
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_aRCC-1 _bDevelopment of chemistry teaching units (secondary) |
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_aBases (chemistry) _xstudy and teaching |
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| 991 | _aPusat Pendidikan | ||
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