https://jurnal.polbangtanmalang.ac.id/index.php/Seminar/issue/feed 2020-10-23T00:00:00+00:00 Open Journal Systems <p>This proceeding is a product of the National Seminar carried out by Politeknik Pembangunan Pertanian Malang. These proceedings are presented in several parts. First, present the main paper from the seminar speaker. Second, present a companion paper relating to the national seminar sub-theme.</p>