1
Published 1987
2
by Hampen-Turner, Charles
Published 1990
3
4
by Muhamed Awang
Published 1990
5
Published 1986
6
by Reutlinger, Shlomo
Published 1970
7
by Reutlinger, Shlomo
Published 1970
8
9
by Morris, William Thomas
Published 1976
10
by Makridakis, Spyros G.
Published 1990
11
Published 1977
12
13
by Adair, John
Published 1984
14
by Noorderhaven, Niels G.
Published 1995
15
by Bolland, Eric J.
Published 2011
16
by Drucker, Peter F.
Published 1970
17
by Ebert, Ronald J.
Published 1975
18
19
by Sanford, Edward.
Published 1977
20
by Siagian, Sondang Paian, 1933-
Published 1982