Keirstead, Burton Seely
Capital, interest and profits
Basil Blackwell, 1959
 Buku Teks
Levy, Haim
Capital investment and financial decisions
Prentice-Hall, 1878
 Buku Teks
Levy, Haim
Capital investment and financial decisions
Prentice-Hall, 1990
 Buku Teks
Thurow, Lester C., editor
Investment in human capital
Wadsworth, 1970
 Buku Teks
Levy, Haim
Capital investment and financial decisions
Prentice-Hall, 1986
 Buku Teks