ACEM directory - Association of Consulting Engineers Malaysia (Kuala Lumpur : Association of Consulting Engineers Malaysia, 1980)
Kepunyaan PTSL : 1980, 1999-2000, 2000-2001, 2001-2002, 2015, 2017/2018, 2018/2019, 2019/2020, 2020/2021.
Keywords: Consulting engineers -- Malaysia -- Directories; Engineering firms -- Malaysia -- Directories