Okki Trinanda, author
Rajawali Pers, 2021
Buku Teks
Griffin, W. Glenn
HOW Books, 2010
Buku Teks
Schell, Erwin Haskell
McGraw-Hill, 1951
Buku Teks
Paul, Dan, author
John Wiley & Sons, 2003
Buku Teks
Siregar, Aria Arayana Parasian, author
Fakultas Psikologi Universitas Indonesia, 2005
UI - Tesis (Membership)