Shih, Hu
The Oriental Book, 1922
Buku Teks
Luchins, Abraham S., author
Holt, Rinehart and Winston, 1965
Buku Teks
Murphey, Murray G., author
Springer, 2012
eBooks
edited by Dov M. Gabbay and John Woods
Elsevier, 2004
Buku Referensi
Achmad Dardiri, author
Rajawali , 1986
Buku Teks