Laporan tahunan = annual report / Annual report Tenaga Nasional Berhad - Kuala Lumpur : Tenaga Nasional Berhad, 1992- - v. : ill. 28 cm. - Annual PTSL : 1997, 2005 2005 : Merealisasi masa depan anda Subjects--Topical Terms: Electricity utilities--Malaysia--Periodicals