Murphy, Wendy B., author
Time-Life Books, 1978
Buku Referensi
Boby R. Nugraha, author
Fakultas Teknik Universitas Indonesia, 2017
UI - Skripsi Membership
Bales, Suzanne Frutig
Prentice Hal Gardening , 1993
Buku Teks
Crockett, James Underwood
Time-life books, 1975
Buku Teks
Philbrick, John H.
Harper & Row, 1963
Buku Teks