Yayasan Proklamasi, Centre for Strategic and International Studies, 1985
Buku Teks SO
Indonesia. Badan Pusat Statistik
Badan Pusat Statistik, 2000
Buku Referensi
Indonesia. Centre for health data ministry of health
Ministry of health, 1991
Buku Teks
Fakultas Teknik Universitas Indonesia, 1999
UI - Tugas Akhir
Chicago : encyclopaedia Britanica Inc, 2000,
Buku Referensi