Yuri Dwi Mayasari, author
Fakultas Kedokteran Universitas Indonesia, 2022
UI - Tugas Akhir
Robertson, E. Graeme, author
Routledge & K. Paul, 1972
Buku Referensi
University of Melbourne ,
Majalah, Jurnal, Buletin
Remy Sylado, author
Kepustakaan Populer Gramedia, 2004
Buku Teks
Cumpston, I.M., author
Longman, 1989
Buku Teks