APA (7th ed.) Citation

Sangalang Jr., L. P. A product mix optimization model. Philippine Engineering Journal.

Chicago Style (17th ed.) Citation

Sangalang Jr., Leonardo P. "A Product Mix Optimization Model." Philippine Engineering Journal .

MLA (9th ed.) Citation

Sangalang Jr., Leonardo P. "A Product Mix Optimization Model." Philippine Engineering Journal, .

Warning: These citations may not always be 100% accurate.