1.
Gozo Philatelic Society Newsletter : no. 32 : April-June 2008
2.
Detailed information of new issues : Flemish tapestries third issue
The Melite Post : Issue No. 4 : September 2017
Manual of the stamps of Netherlands
The postal history of the grand duchy of Luxembourg
Holland
Netherlands Centenary Philatelic Exhibition, January 26-February 18, 1952.
Gozo Philatelic Society Newsletter : no. 56 : April-June 2014
Detailed information of new issues : Flemish tapestries 2
Gozo Philatelic Society Newsletter : no. 63 : January-March 2016