"Art-in-Transit". SBSTransit. 15 December 2020. Archived from the original on 21 April 2020. Retrieved 22 December 2020.
"Commissions". Eng Tow Artist. Archived from the original on 28 December 2020. Retrieved 28 December 2020.
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Leong 2003, p. 164. Leong, Chan Teik (2003). Getting there : The story of the North East Line. Singapore: Land Transport Authority (LTA). ISBN981-04-5886-X. OCLC53383062.
Leong 2003, p. 175. Leong, Chan Teik (2003). Getting there : The story of the North East Line. Singapore: Land Transport Authority (LTA). ISBN981-04-5886-X. OCLC53383062.
Leong 2003, p. 169. Leong, Chan Teik (2003). Getting there : The story of the North East Line. Singapore: Land Transport Authority (LTA). ISBN981-04-5886-X. OCLC53383062.
Leong 2003, p. 166. Leong, Chan Teik (2003). Getting there : The story of the North East Line. Singapore: Land Transport Authority (LTA). ISBN981-04-5886-X. OCLC53383062.
Tan 2003, p. 134. Tan, Su (2003). Art in transit : North East Line MRT - Singapore. Singapore: Land Transport Authority. ISBN981-04-7384-2. OCLC52771106.
Leong 2003, p. 253. Leong, Chan Teik (2003). Getting there : The story of the North East Line. Singapore: Land Transport Authority (LTA). ISBN981-04-5886-X. OCLC53383062.
Leong 2003, p. 248. Leong, Chan Teik (2003). Getting there : The story of the North East Line. Singapore: Land Transport Authority (LTA). ISBN981-04-5886-X. OCLC53383062.
Leong 2003, p. 249. Leong, Chan Teik (2003). Getting there : The story of the North East Line. Singapore: Land Transport Authority (LTA). ISBN981-04-5886-X. OCLC53383062.
Tan 2003, p. 135. Tan, Su (2003). Art in transit : North East Line MRT - Singapore. Singapore: Land Transport Authority. ISBN981-04-7384-2. OCLC52771106.
Tan 2003, p. 137. Tan, Su (2003). Art in transit : North East Line MRT - Singapore. Singapore: Land Transport Authority. ISBN981-04-7384-2. OCLC52771106.