A Two-layer Data Envelopment Analysis Model for Sustainable Performance Evaluation. - Willy F. Zalatar; Eppie Estanislao-Clark (IEEM, 2018)

Development of a Quadruple Bottom Line-based Composite Sustainability Index to Measure Sustainable Performance. - Willy F. Zalatar; Eppie Estanislao-Clark (IEEM, 2019)

A Multiple Layer DEA Model for Evaluating Corporate Sustainable Performance Using Lean Manufacturing Practices. - Willy F. Zalatar; Eppie Estanislao-Clark (IEEM, 2020)

Constructing a Composite Indicator for Manufacturing Companies Using Lean Metrics and Analytic Hierarchy Process. - Willy F. Zalatar; Eppie Estanislao-Clark (IEEM, 2021)