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 Ramadhan, M., & Kurniasari, M. 2023 Aug 29. PERBANDINGAN WAKTU DAN BIAYA PADA METODE PELAKSANAAN TOP-DOWN DAN BOTTOM-UP PROYEK APARTEMEN X KOTA MALANG. JURNAL SPEKTRAN. [Online] 11:2