Steel, Robert George Douglas, 1917-, author
McGraw-Hill, 1960
Buku Teks
Steel, Robert George Douglas, 1917-, author
McGraw-Hill , 1980
Buku Teks
Universitas Indonesia, 2014
UI - Skripsi (Membership)
Diez, Pedro J. Gutierrez, author
Springer, 2012
eBooks
Rashevsky, Nicolas
Charles C Thomas , 1964
Buku Teks