Lovelock, Christopher H., author
McGraww-Hill, 1993
Buku Teks
Rewoldt, Stewart H.
Homewood: Richard D. Irwin, 1969
Buku Teks
Thomas Rudolph, Bodo B. Schlegelmilch, Josep Franch, Andras Bauer, Jan Niklas Meise, editors
[Springer, Springer], 2012
eBooks
Kerin, Roger A., author
Pearson, 2013
Buku Teks
Saxena, Rajan, author
Tata McGraw-Hill, 1984
Buku Teks