1. Elements of set theory
Author: Zehna, Peter W
Library: Library of College of Science University of Tehran (Tehran)
Subject: ، Set theory,، Logic, Symbolic and mathematical
Classification :
QA
248
.
3
.
Z45
1972
2. Finite probability
Author: Zehna, Peter W.
Library: Library of Mofid University (Qom)
Subject:
Classification :
QA
273
.
Z39
1969
