Johnson, Richard A., author
Pearson Education International, 2007
Buku Teks
Hardle, Wolfgang Karl, author
Springer, 2012
eBooks
Hardle, Wolfgang Karl, author
Springer , 2012
eBooks
Raykov, Tenko, author
Routledge, Taylor & Francis Group, 2008
Buku Teks
Johnston, R.J. (Ronald John), author
Longman, 1978
Buku Teks