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Bibliografi : hlm. 422
Judul asli : "Effective Class Management : A practical Approach"
No Inv.: 2063-2067/P/Perp/96/5c~4752/P/Perp/97/1c~2528-2537/P/Perp/98/10c
No Inv.: 142388/P/Perp/14/1c
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