Jie Chong, Henry Ren
The Effects of the internet and local socio-economic issues on elections: A case study of southern johor, Malaysia (2008-2018)
Taiwan Foundation for Democracy, 2020
 Artikel Jurnal
Contemporary issues in applied and professional ethics
edited by Marco Grix, Tim Dare
Emerald, 2016
 eBooks
Theil, Henri
Applied economic forecasting
North-Hollad Pub., 1966
 Buku Teks
Meier, Gerald M.
Leading issues in economic development
Oxford University Press, 1984
 Buku Teks
Hailstones, Thomas J.
Contemporary economic problems and issues
South-Western Publishing, 1985
 Buku Teks