Gaya APA

Sudjadi, A, S. (2001). Well Logging In Coal Exploration . Bandung: Indonesian ministryof mines and energi directorate general of geologi and mineral resources director.

Gaya MLA

Sudjadi, Adri, Santosa. "Well Logging In Coal Exploration". Bandung: Indonesian ministryof mines and energi directorate general of geologi and mineral resources director, 2001. Fungsional.