Gaya APA

Wangsadinata, , W. (1986). Seismic Risk For a Fixed Crossing Between Java and Sumatera . : BPP Teknologi.

Gaya MLA

Wangsadinata, , Wiratman. "Seismic Risk For a Fixed Crossing Between Java and Sumatera". : BPP Teknologi, 1986. Computer Software.