Mendenhall, William
Introduction to probability and statistics
Wadsworth , 1967
 Buku Teks SO
Alder, Henry L.
Introduction to probability and statistics
W.H. Freeman, 1977
 Buku Teks SO
Mendenhall, William
Introduction to probability and statistics
Wadsworth, 1969
 Buku Teks SO
Goldman, Malcolm
Introduction to probability and statistics
Harcourt Brace World, 1970
 Buku Teks SO
Alder, Henry L.
Introduction to probability and statistics
W.H. Freeman, 1972
 Buku Teks SO