Lighting Evaluation and Optimization of Lamp Placement in the Nursing Research Centre Classrooms at Universitas Muhammadiyah Semarang . JTS [Internet]. 2022 Dec. 12 [cited 2025 Mar. 14];15(2):60-6. Available from: https://jurnal2.untagsmg.ac.id/index.php/jts/article/view/695