Gaya APA

1). Ferret, Sharon.K. (2010). Peak performance. Succes in college and beyond.texbook Manajemen 2010 (Seventh edition). New York :: McGraw-Hill Companes, Inc,.

Gaya Chicago

1). Ferret, Sharon.K. Peak performance. Succes in college and beyond.texbook Manajemen 2010. Seventh edition New York :: McGraw-Hill Companes, Inc,, 2010. texbook Manajemen.

Gaya MLA

1). Ferret, Sharon.K. Peak performance. Succes in college and beyond.texbook Manajemen 2010. Seventh edition New York :: McGraw-Hill Companes, Inc,, 2010. texbook Manajemen.

Gaya Turabian

1). Ferret, Sharon.K. Peak performance. Succes in college and beyond.texbook Manajemen 2010. Seventh edition New York :: McGraw-Hill Companes, Inc,, 2010. texbook Manajemen.