Gipson, James H.
McGraw-Hill Book, 1984
Buku Teks
Lloyd, Elizabeth Jane
New York: Simon ans Schuster, 1990,
Buku Referensi
Lloyd, Elizabeth Jane
Simon & Schuster, 1990
Buku Referensi
King, Stephen
Naura Books, 2019
Buku Teks
Deva, B. C.
National Book Trust, 1977
Buku Teks