Velasco, M. M., & Aboitiz, E. I. 'Cleanergy'center advances energy education . IN Business Profile. Manila Bulletin.
Čikaški stil citiranja (17. izdanje)Velasco, Myrna M., i Erramon I. Aboitiz. "'Cleanergy'center Advances Energy Education . IN Business Profile." Manila Bulletin .
MLA način citiranja (9. izdanje)Velasco, Myrna M., i Erramon I. Aboitiz. "'Cleanergy'center Advances Energy Education . IN Business Profile." Manila Bulletin, .
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