Gaya APA

Lavigne, F. (1994). Lahar Activity in Boyong River After The 22 November 1994 Merapi Eruption (1994 November 22-1995 February 11) (February 1994). Yogyakarta: Sabo Technical Centre.

Gaya MLA

Lavigne, Franck. "Lahar Activity in Boyong River After The 22 November 1994 Merapi Eruption (1994 November 22-1995 February 11)". February 1994 Yogyakarta: Sabo Technical Centre, 1994. Text.