Utomo Mohamad Nur, Sugen Wahyudi, Harjum Muharam, and Taolin Maximus Leonardo. 2018. “Strategy to Improve Firm Performance Through Operational Efficiency Commitment to Environmental Friendliness: Evidence From Indonesia”. Organizations and Markets in Emerging Economies 9 (1), 62-85. https://doi.org/10.15388/omee.2018.10.00004.