Gaya APA
ADAMS, J., L. (2012).
GOOD PRODUCTS-BAD PRODUCTS ESSENTIAL ELEMENTS TO ACHIEVING SUPERIOR QUALITY .
USA:
Mc Graw Hill.
Gaya MLA
ADAMS, JAMES, L.
"GOOD PRODUCTS-BAD PRODUCTS ESSENTIAL ELEMENTS TO ACHIEVING SUPERIOR QUALITY".
USA:
Mc Graw Hill,
2012.
Buku Inti.