TY - BOOK TI - English as a Second Language : T2 - PRACTICAL ENGLISH USAGE SN - 9789971946173 PY - 2001/// CY - Singapore PB - TIMES EDUCATIONAL CO (PTE) LTD KW - I. Title KW - II. Series KW - English language KW - Textbooks for foreign speakers KW - Second language acquisition KW - BAHASA KW - Business KW - Grammar KW - Problems, exercises, etc KW - Usage N1 - Includes questions and answers ER -