@base . a ; "2540-9859" ; . a ; ; "20210206231300.0"^^ ; ; . a ; . "Indonesia" . a . a , , ; , , ; "SEJ (Science Education Journal)" ; ; ; "2540-9859" ; ; "2540-9859" ; ; "2540-9859" ; "SEJ (Science Education Journal)" , "SEJ (Science Education Journal) (Online)" ; ; "http://ojs.umsida.ac.id/index.php/sej" . a , ; "SEJ (Science Education Journal) (Online)" . . a ; "2540-9859" ; .