B. Nugroho, W. Setyowati, and T. A. Setiyono, “The influence of perceived environmental friendly-office program regulation and public service motivation on pro-environmental behavior of civil servants with OCBE as intervening variable”, JBB, vol. 11, no. 2, pp. 213–229, Apr. 2022, doi: 10.14414/jbb.v11i2.2776.