Gaya APA

Tarina, S, ;, D, D, Y. (2015). Contract freedom principles development . Kuala Lumpur: UniKL.

Gaya MLA

Tarina, Suherman, ;, Dwi, Desi, Yayi. "Contract freedom principles development". Kuala Lumpur: UniKL, 2015. Artikel Prosiding Internasional.