Cheaper prices for solar power help renewable energy expansion. IN Business News. Manila Bulletin.
Chicago-viite (17. p.)"Cheaper Prices for Solar Power Help Renewable Energy Expansion. IN Business News." Manila Bulletin .
MLA-viite (9. p.)"Cheaper Prices for Solar Power Help Renewable Energy Expansion. IN Business News." Manila Bulletin, .
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.