Socio economic study of trishawmen in Pulau Pinang - Kuala Lumpur : Unit Penyelidikan Sosio-Ekonomi dan Perancangan Am, 1979 - vii, 90 p. : ill., maps ; 27 cm. ISBN: Hadiah Subjects--Topical Terms: Rickshaw menPeddlars and peddling--Pulau Pinang Subjects--Geographic Terms: Pulau Pinang--Economic conditions