http://ikhwaniril.blogspot.co.id/2016/02/membuat-script-autosubmit-dengan-dengan.html
https://nasrul.arekmedia.com/simple-ajax-form-auto-submit/
https://www.sekolahkoding.com/forum/php-script-auto-submit-after-20-minutes
http://javascript-coder.com/javascript-form/javascript-form-submit.phtml
http://www.kursusinternet.com/javascript/tips-tips-javascript/menggunakan-auto-submit-pada-select-combo-box