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 Sutjana, I.D.P., & I Nyoman Adiputra. " COMPARISON STUDY IN USING PLOUGH, TRACTOR AND CULTIVATOR FOR RICE FIELD’ LAND PREPARATION." INDONESIAN JOURNAL OF BIOMEDICAL SCIENCES [Online], (2008): n. pag. Web. 6 Sep. 2026