Sample surveys in the Escap rigion
United Nations-ESCAP , 1983
Buku Teks
Sample surveys in the Escap rigion
United Nations-ESCAP , 1982
Buku Teks
Hyman, Herbert H.
Secondary analysis of sample surveys
John Wiley & Sons, 1972
Buku Teks
Fink, Arlene
How to sample in surveys
Thousand Oaks : SAGE PUBLIKATION, 2003,
Buku Referensi
Toepoel, Vera
Doing surveys online
SaGE Publications , 2016
Buku Teks