https://www.mindef.gov.sg/oms/content/dam/imindef_media_library/graphics/pointer/PDF/2014/Vol.40 No.1/11) V40N1_Quotable Quotes.pdf
https://www.mindef.gov.sg/oms/content/dam/imindef_media_library/graphics/pointer/PDF/2014/Vol.40 No.1/11) V40N1_Quotable Quotes.pdf
