English fundamentals: form B.-- Ed. 6
Errors in English and ways to correct them.-- Ed. 3
English for international co-operation
Modern office limited: bahasa inggris untuk perdagangan
Practical conversation in english: for beginning students
Practice and progress: an integrated course for pre-intermediate students
Tata bahasa Inggris modern
American English today: our common language
AKL: begining1973
English for the secretary: instrumental English
Building komplex english sentences
Keys to spelling mastery
Intermediate anecdotes in American English
Growth in good English
Reading for a purpose: encore 4
English on call level one
Experiential English
American English today: the tools of English
Essential english for foreign students book two