Philippine Statistics Authority. (2019). 2019 Philippine statistical yearbook. PSA.
Chicago-viite (17. p.)Philippine Statistics Authority. 2019 Philippine Statistical Yearbook. Diliman, Quezon City: PSA, 2019.
MLA-viite (9. p.)Philippine Statistics Authority. 2019 Philippine Statistical Yearbook. PSA, 2019.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.