Wilde, Lawrence, author
Dartmouth, 1994
Buku Teks
Louisiana : Louisiana State University
Majalah, Jurnal, Buletin
Asabell Audida, author
Grasindo, 2022
Buku Teks
Lenin, Vladimir I., author
Foreign Languages Publishing House, 1963
Buku Teks
Smith, Henry
University Press , 1962
Buku Teks