English for mechanical engineering
Translation : from theories to practice
a Handbook of english grammar = tata bahasa Inggris lengkap : an effective way to master english = cara efektif mahir berbahasa Inggris
Essential english grammar
Easy toeic = test of english for international communication: mudah memahami dan mengerjakan tes TOEIC, skor di atas 600
Easy toefl = test of english a foreign language: tes toefl, skor di atas 500
Teknik penerjemahan text books : Panduan praktis
English grammar = tata bahasa Inggris
Teaching English as an additional language in secondary schools : theory and practice
An introduction to foreign language learning and teaching