Suprayogi, Eka, et al. “The Effect of Work Discipline and Work Environment on Operational Performance through Work Motivation As a Mediating Variable in The Japanese Automotive Manufacturing Industry in Serang Regency”. Amkop Management Accounting Review (AMAR), vol. 6, no. 2, June 2026, pp. 164-8, doi:10.37531/amar.v6i2.3857.