Naidoo, Jennie
Elsevier, 2016
Buku Teks SO
by Randall R. Cottrell, James T. Girvan, Denise M. Seabert, Caile Spear, James F. McKenzie
Pearson Education, 2018
Buku Teks SO
Cottrell, Randall R.
Pearson, 2014
Buku Teks SO
Buku Teks SO
Paterson, Robert G. (Robert Gildersleeve)
McGraw-Hill, 1950
Buku Teks SO