Seminar on modernisation and the environment, 30th. March -31st March 1974, Dewan Sri Pinang, Pulau Pinang - Seminar on Modernisation and the Environment (1974 : Pulau Pinang); Persatuan Pengguna-Pengguna Negeri Pulau Pinang (Pulau Pinang : Consumers Association of Penang, 1974)
Keywords: Man -- Influence of environment; Environmental protection; Progress