Laporan tahunan = annual report - Perusahaan Otomobil Nasional Berhad (Shah Alam : Perusahaan Otomobil Nasional Berhad, 1985)
PTSL : 1984/85, 1985/86, 1992, 1994, 1995, 1996, 1998, 2000
English and Malay