Energy Statistics Yearbook= Annuaire des Statistiques de l'energie
United Nations
United Nations, 1990, c1991, c1994
 Buku Teks SO
Rural energy statistics: materials for a oneweek training programme, Bangkok, 19-24 November 1990
UNDP and ESCAP , 1990
 Buku Teks SO
Indonesia energy outlook & statistics 2004
PEUI, 2004
 Multimedia
Indonesia energy outlook & statistics 2004
edited by Widodo Wahyu Purwanto
Pengkajian Energi Universitas Indonesia, 2004
 Buku Teks SO
Indonesia energy : Outlook & statistics 2006
Widodo Wahyu Purwanto [and others]
Pengkajian Energi UI, 2006
 Buku Teks SO