What are some primary and secondary sources of the gallipoli campaign ?

I need at least two primary and two secondary sources of the gallipoli campaign in world war 1. I also need it to be based on the Australian soldiers that participated in that battle. I cannot find these sources anywhere.. I could really use some help. The sources can be in a form of a diary entry, a newspaper, poster, official document, quote or a photograph. I also need a reference.. if somebody could help me, i'd be so greatful! .What are some primary and secondary sources of the gallipoli campaign ?
On Google images, if you type in ';gallipoli campaign';, you will see many photos, posters, etc.





poster


http://images.google.com/imgres?imgurl=h鈥?/a>





photos


http://images.google.com/imgres?imgurl=h鈥?/a>





http://images.google.com/imgres?imgurl=h鈥?/a>





http://images.google.com/imgres?imgurl=h鈥?/a>





document


http://images.google.com/imgres?imgurl=h鈥?/a>





quotes from diaries and other sources


http://images.google.com/imgres?imgurl=h鈥?/a>





newspaper (casualties)


http://www.rootsweb.ancestry.com/~nzlsca鈥?/a>


http://images.google.com/imgres?imgurl=h鈥?/a>