Koh, T.B. | “Changi”, Focus, 5 (1971): 16, Print. January 9, 2012 Koh, T.B. | “Changi”, Focus, 5 (1971): 16, Print. January 9, 2012 Koh, T.B. | “Changi”, Focus, 5 (1971): 16, Print.
