Gaya APA

Labo, J. (1986). A Practical Introduction to Borehole Geophysics . Tulsa: Society Of Exploration Geophysicists.

Gaya MLA

Labo, J.. "A Practical Introduction to Borehole Geophysics". Tulsa: Society Of Exploration Geophysicists, 1986. Buku PPs Prodi Teknik Kimia.