Humble, John William
Improving business results
McGraw-Hill, 1968
 Buku Teks SO
Humble, John William
Meningkatkan hasil perusahaan = Improving business results
Erlangga, 1979
 Buku Teks
Improving business performance
edited by Vas Prabhu and Malcolm Baker
McGraw-Hill, 1986
 Buku Teks
Kneeland, Steve
Grolier business library: recruiting for results
Glorier International, 2001
 Buku Referensi
Hamilton, Cheryl
Communicating for results : a guide for business and the professions
Thomson/Wadsworth, 2011
 Buku Teks SO