books.google.com.auhttp://books.google.com.au/books/about/The_Journal_of_the_Department_of_Agricul.html?id=c60IAQAAIAAJ&q=%22digester+refuse+(hashmagandy)%22+-intitle:%22%22+-inauthor:%22%22&utm_source=gb-gplus-shareThe Journal of the Department of Agriculture of Victoria
