Sukur, Silvester Goridus
Comprehensive English grammar for the toefl test : for beginners 1 = panduan lengkap menguasai grammat untuk / Silvester Goridus Sukur
Indonesia Cerdas, 2007
 Buku Teks
Rosyid Anwar
Toefl Grammar Perfrct Score : Trip & Trik Lengkap Toefl structure dan Writtrn Expression
Bhuana Ilmu Populer, 2023
 Buku Teks
Dhanny R. Cyssco
English grammar practice for TOEFL preparation test / Dhanny R. Cyssco
Puspa Swara, 2004
 Buku Teks
Makkink, H.J.
An English grammar
Nijgh and Van Ditmar, 1951
 Buku Teks SO
Ballantine, Joseph W.
Japanese as it is spoken : a beginners grammar
Stanford University, 1945
 Buku Teks SO