APA-referens (7:e uppl.)

Yap, J. P., Jr. (2019). Resiliency of the native pig industry. Agriculture.

Chicago-referens (17:e uppl.)

Yap, Julio P., Jr. "Resiliency of the Native Pig Industry." Agriculture 2019.

MLA-referens (9:e uppl.)

Yap, Julio P., Jr. "Resiliency of the Native Pig Industry." Agriculture, 2019.