Roget's II the new thesaurus
Oxford advanced learner's dictionary of current English / A.S. Hornby
Kamus pintar memilih sinonim Indonesia Inggris
English Arabic dictionary / F. Steingass
Advanced junior dictionary / Thorndike,Barnhart
The heritage illustrated dictionary of the english language
Kamus lengkap Inggris-Indonesia, Indonesia-Inggris / S. Wojowasito
The Little Collins dictionary / Graham Brash
Everyman's English pronouncing / Daniel Jones
Kamus Inggris- Indonesia : An English-Indonesian Dictionary / John M. Echols, Hassan Shadily