TY - BOOK ED - Ministry of Education and Vocational Training TI - Chemistry syllabus for ordinary secondary education form I-IV SN - 978-9976-61-239-4 AV - QD41 .M56 2007 PY - 2007/// CY - Dar es salaam: PB - Ministry of education and vocational training KW - Chemistry -study and teaching KW - Curriculum ER -