 Petrick 's work is held in a variety of public and private collections , including Artbank , the Charles Sturt University Collection , the Holmes a Court Collection , and the National Gallery of Victoria . 
 Petrick <a href='null_genetive' title='1'><mark>'s</mark></a>work is held in a variety of public and private collections , including Artbank , the Charles Sturt University Collection , the Holmes a Court Collection , and the National Gallery of Victoria . 
Petrick  work is held in a variety of public and private collections , including Artbank , the Charles Sturt University Collection , da Holmes a Court Collection , and tdaNational Gallery of Victoria .