Warning: file_get_contents(https://ojs.journalbusiness.my/ojs.php): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /var/www/ojs.unud.ac.id_backup/lib/pkp/includes/functions.inc.php on line 4 Yudi Pramayasa, I., Satya Kumara, I., & Setiawan, I. (2022). SURVEI BIAYA INVESTASI AWAL PLTS ATAP DI INDONESIA TAHUN 2022. Jurnal SPEKTRUM, 9(3), 94-104. doi:10.24843/SPEKTRUM.2022.v09.i03.p11