Tan, Ka Kheng <br/><br/>
A study on the performance of several existing treatment facilities for piggery wastes in Perak, Selangor, Malacca and Johor/ 
by Tan Ka Kheng and Francis Tan Keng Hock 
 -  Department of Civil and Environmental Engineering,  Serdang, Selangor:;1986 
 - v.p.:  ill.,col.  30 cm