- APhO 01, April 2000 in Karawaci, Indonesia
- APhO 02, April 2001 in Taipei, Taiwan
- APhO 03, May 2002 in Singapore
- APhO 04, April 2003 in Bangkok, Thailand
- APhO 05, April 2004 in Hanoi, Vietnam
- APhO 06, April 2005 in Pekanbaru, Indonesia
- APhO 07, April 2006 in Almaty, Kazakhstan
- APhO 08, 21-29 April 2007, in Shanghai, China
- APhO 09, 20-28 April 2008 in Ulaanbaatar, Mongolia
- APhO 10, 24 April-2 May 2009 in Bangkok, Thailand
- APhO 11, 23 April-1 May 2010 in Taipei, Taiwan
- APhO 12, 1-9 May, 2011 in Tel Aviv, Israel
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