فهرس المقالات Geometric programming . Production management . Cubic cost production function . Jointness حرية الوصول المقاله صفحة الملخص نص كامل 1 - Joint pricing and production management: a geometric programming approach with consideration of cubic production cost function Seyed Jafar Sadjadi Aghil Hamidi Hesarsorkh Mehdi Mohammadi Ali Bonyadi Naeini