The Gardens' bulletin, Singapore (Govt. Print. Off. [etc.], 1988)

The Gardens' bulletin, Singapore (Govt. Print. Off. [etc.], 1993)

The Gardens' bulletin, Singapore (Govt. Print. Off. [etc.], 1994)

The Gardens' bulletin, Singapore (Govt. Print. Off. [etc.], 1995)

The Gardens' bulletin, Singapore (Govt. Print. Off. [etc.], 2000)

The Gardens' bulletin, Singapore (Govt. Print. Off. [etc.], 2002)

The Gardens' bulletin, Singapore (Govt. Print. Off. [etc.], 2003)

The Gardens' bulletin, Singapore (Govt. Print. Off. [etc.], 2004)

The Gardens' bulletin, Singapore (Govt. Print. Off. [etc.], 2005)

The Gardens' bulletin, Singapore (Govt. Print. Off. [etc.], 2008)