Study and teaching -- English language -- 19 Chinese language -- 18 Foreign speakers 18 English speakers 16 English speakers -- 16 English 12 more ... Interactive multimedia 12 Self-instruction 12 French language -- 11 Sound recordings for English speakers 11 Audio-visual aids 10 Grammar -- 10 Textbooks for foreign speakers -- 7 Chinese Language -- 6 Self-instruction -- 6 Study and teaching 6 Conversation 5 Computer asisted instruction for foreign speakers 4 Conversation and phrase books 4 Spanish language -- 4 Arabic language -- 3 Chinese characters 3 Conversation and phrase books -- 3 Grammar 3 Textbooks for foreign speakers 3 Computer assisted instruction for foreign speakers -- 2 Conversation and phrase book -- 2 Englsih -- 2 Foreign speakers -- 2 less ...