TY - BOOK ED - National Institute of Education TI - MATHEMATICS: grade 6 : teacher's instructional manual : Part II (for the second and third terms) U1 - B1139 PY - 2007/// CY - Maharagama PB - National Institute of Education KW - BOOKS BOX B1139 KW - EDUCATION KW - INSTRUCTIONAL MANUAL KW - MATHEMATICS ER -