Hepler, Donald E.
McGraw-Hill , 1977
Buku Teks SO
Hepler, Donald E.
McGraw-Hill , 1982
Buku Teks SO
Goodban, William T.
McGraw-Hill, 1979
Buku Teks SO
Goodban, William T.
McGraw-Hill, 1979
Buku Teks SO
McHugh, Robert C
Van Nostrand Reinhold, 1982
Buku Teks SO