Depasupil, W. B. (2002). DPWH: Millions spent for Smart traffic light system. Manila Times.
Citazione stile Chigago Style (17a edizione)Depasupil, William B. "DPWH: Millions Spent for Smart Traffic Light System." Manila Times 2002.
Citatione MLA (9a ed.)Depasupil, William B. "DPWH: Millions Spent for Smart Traffic Light System." Manila Times, 2002.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.