Kementerian Perencanaan Pembangunan Nasional RI; writing team, Maswadi Rauf, Syarif Hidayat, Abdul Malik Gismar, Siti Musdah Mulia, August Parengkuan
United Nations Development Programme, 2012
Buku Teks
Mahathir bin Mohamad, 1925-, author
Pelanduk Publications, 1986
Buku Teks
Artikel Jurnal
Heimsath, Clovis, author
McGraw-Hill, 1977
Buku Teks
Heimsath, Clovis, author
McGraw-Hill, 1977
Buku Teks