Walker, Theodore D.
Van Nostrand Reinhold,, 1990
Buku Teks
Austin, Richard L.
Van Nostrand Reinhold, 1983
Buku Teks
Austin, Richard L.
Van Nostrand Reinhold, 1984
Buku Teks
Holden, Robert
Laurence King Publishing, 1996
Buku Referensi
Made Wijaya
Archipelago Press, 1999
Buku Referensi