Stamp collecting magazines
GB Stamps - British Philatelic Bulletin - Vol 39 # 7 - March 2002
GB Stamps - British Philatelic Bulletin - Vol 20 # 2 - October 1982
GB Stamps - British Philatelic Bulletin - Vol 52 # 3 - November 2014
GB Stamps - British Philatelic Bulletin - Vol 10 #3- November 1972
Singapore's monuments and landmarks - A Philatelic ramble - 9789810578091
Stanley Gibbons stamp monthly magazine - July 2018
GB Stamps - British Philatelic Bulletin - Vol 41 # 12 - August 2004
GB Stamps - British Philatelic Bulletin - Vol 32 # 8 - April 1995
GB Stamps - British Philatelic Bulletin - Vol 27 # 9 - May 1990
GB Stamps - British Philatelic Bulletin - Vol 31 # 9 - May 1994
GB Stamps - British Philatelic Bulletin - Vol 35 # 8 - April 1998
Stanley Gibbons stamp monthly magazine - November 2018