Hwaite, E.B., author
Changjakwabipheongsa, 2000
Buku Teks
Wait, James R., author
Academic Press, 1982
Buku Teks
Pusat Pelayanan Jasa dan Informasi Badan Koordinasi Survei dan Pemetaan Nasional ( BAKOSURTANAL),
Majalah, Jurnal, Buletin
Portocarero, Herman, 1952-, author
Manteau, 1992
Buku Teks
Smith, George Albert
Harvard University, Graduate School of Business Administration, Division of Research, 1958
Buku Teks