Study and teaching English language 195 Problems, exercises, etc 80 Foreign speakers 73 Education 51 Grammar 48 Textbooks for foreign speakers 45 Islam 40 Malay language 30 Teaching 30 Training of 30 Science 22 History 21 Leadership 21 Examinations, questions, etc 20 Koran 20 Mathematics 19 Physical education and training 16 Language and languages 15 Management 14 Usage 14 Handbooks, manuals, etc 11 Psychological aspects 10 Activity programs 9 Evaluation 9 Executives 9 Philosophy 9 Writing 9 Composition and exercises 8 Physics 8