Keedy, Mervin L.
A problem-solving approach to intermediate algebra
Addison-Wesley, 1986
Buku Teks
Polya, George
Mathematical discovery : on understanding, learning, and teaching problem solving
John Wiley & Sons, 1981
Buku Teks SO
Gendell, Julien
Basic chemistry : a problem solving approach
West Publisihing, 1993
Buku Teks
Recognizing and correcting developing malocclusions : a problem-oriented approach to orthodontics
John Wiley & Sons, 2016
Buku Teks
Kepner, Charles Higgins, 1922-
The rational manager a systematic approach
McGraw-Hill, 1965.
Buku Teks