Goh, Sin Tub | Ghosts of Singapore!, Singapore: Heinemann Asia, 1990, Print. August 29, 2013 Goh, Sin Tub | Ghosts of Singapore!, Singapore: Heinemann Asia, 1990, Print. August 29, 2013 Goh, Sin Tub | Ghosts of Singapore!, Singapore: Heinemann Asia, 1990, Print.