English Grammar Practice For Toefl Preparation Test
PT.Bhuana Ilmu Populer (Kelompok Gramedia)
English conversation and correspondence for secretaries
Special conversations for traveler Persiapan dan panduan keluar negeri
PT. Bhuana Ilmu Populer (Kelompok Gramedia)
Special Conversation For Hotels dan Restaurants (Panduan Komunikasi Karyawan di Hotel dan Restoran)
English Grammar Pratice For Toefl : Persiapan Tes
TOEFL : Test Preparation Models dan Problem Solving