Robertson, S. Ian
Problem solving
Psychology Press, 2001
 Buku Teks SO
Fitri Ilmi Amalia
Perbedaan Problem Solving pada Mahasiswa Psikologi Jenjang Sarjana Tahun Akhir dan Tahun Pertama = Differences of Problem Solving of the First Year and Last Year Undergraduate Psychology Students
Fakultas Psikologi Universitas Indonesia, 2013
 UI - Skripsi Membership
Engineering fundamentals and problem solving
by Arvid R. Eide ... [and others]
McGraw-Hill, 1986
 Buku Teks SO
Ennos, A.R.
Problem solving in environmental biology
Longman Scientific & Technical, 1995
 Buku Teks
Mayer, Richard E.
Thinking, problem solving, cognition
W.H. Freeman, 1983
 Buku Teks SO