فهرس المقالات Richard Gunawan المقاله 1 - How to optimize the CPO Share Portfolio in the Composite Stock Price Index haryadi sarjono Boyke __Setiawan __Soeratin Boyke __Setiawan __Soeratin Richard __Ananda __Gunawan Richard __Ananda __Gunawan International Journal of Management and Business Research , العدد 27 , السنة 8 , بهار 2024