Check online student forums or local buy-and-sell groups. Physical copies are often sold at a fraction of the original price.
Matias A. Arreola was a prolific Filipino author and educator who made significant contributions to engineering education. Beyond "Engineering Economy," he wrote several other technical works, including: Engineering Economy Matias Arreola Pdf Free Download
Because this book is a staple for board exam review, graduating engineers frequently sell their used copies at steep discounts. Check online marketplaces like Shopee, Lazada, Carousell, or university student groups. Check online student forums or local buy-and-sell groups