Problems in mathematics: with hints and solutions
by V. Govorov ... [and others]; edited by A.L. Prilepko
MIR, 1986
 Buku Teks SO
Tikhonov, Andrey N.
Solutions of ill-posed problems
John Wiley & Sons, 1977
 Buku Teks SO
Problems and solutions on electromagnetism
edited by Lim Yung-Kuo [and others]
World Scientific, 1994
 Buku Teks SO
Hecht, Eugene
Schaum's outline of theory and problems of optics/ Eugene Hecht
McGraw-Hill, 1975
 Buku Teks SO
Surahyo, Akhtar
Concrete construction practical problems and solutions
Springer Nature, 2019
 eBooks