IPG Professional Advancement & Business Center Of The Philippines. IPG Seminar handouts.
Citazione stile Chigago Style (17a edizione)IPG Professional Advancement & Business Center Of The Philippines. IPG Seminar Handouts.
Citatione MLA (9a ed.)IPG Professional Advancement & Business Center Of The Philippines. IPG Seminar Handouts.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.