There is a growing movement to document local Chinese history. Here are two recent papers:

UNSMELTERED GOLD, UNCUT JADE.: SOURCES AND RESOURCES FOR THE STUDY OF HISTORY OF CHINESE NEW ZEALANDERS
Victoria University of Wellington Stout Research Centre Seminars
Chinese New Zealand March-June 2003
Nigel Murphy & Lynette Shum

REMEMBERING HAINING STREET: With both eyes open

Lynette Shum - 2003

In addition work is being done by:

Allen and Kitty Chang - recording mainly family histories

Wong Liu Shueng and others- organising a Chinese Oral History Association in Auckland and Welliington

Henry Chan - researching the history of Tung Jung people in New Zealand and Australia