Interactive fuzzy linear programming and an application sample at a textile firm. - Irfan Ertugrul; Aysegül Tus (Fuzzy Optim. Decis. Mak., 2007)

Fuzzy Multi-criteria Decision Making Method for Machine Selection. - Irfan Ertugrul; Mustafa Günes (Analysis and Design of Intelligent Systems using Soft Computing Techniques, 2007)

Fuzzy Goal Programming and an Application of Production Process. - Irfan Ertugrul; Mustafa Günes (Analysis and Design of Intelligent Systems using Soft Computing Techniques, 2007)

The Usage of Fuzzy Quality Control Charts to Evaluate Product Quality and an Application. - Irfan Ertugrul; Mustafa Günes (Analysis and Design of Intelligent Systems using Soft Computing Techniques, 2007)

Performance evaluation of Turkish cement firms with fuzzy analytic hierarchy process and TOPSIS methods. - Irfan Ertugrul; Nilsen Karakasoglu (Expert Syst. Appl., 2009)

Construction of quality control charts by using probability and fuzzy approaches and an application in a textile company. - Irfan Ertugrul; Esra Aytaç (J. Intell. Manuf., 2009)

Fuzzy Pert and its Application to Machine Installation Process. - Irfan Ertugrul; Nilsen Karakasoglu (J. Multiple Valued Log. Soft Comput., 2009)

Business Mobile-line Selection in Turkey by Using Fuzzy TOPSIS, One of the Multi-criteria Decision Methods. - Irfan Ertugrul; Tayfun Öztas (ITQM, 2014)

Combi boiler system modeling with fuzzy inference mechanism and Fuzzy Copras method. - Abdullah Özçil; Irfan Ertugrul; Tayfun Öztas; Gülin Zeynep Öztas (FUZZ-IEEE, 2015)