Sihotang, R.
(2022).
 The Effectiveness of Promotion Expenses of Universitas Advent Indonesia on Gathering Market Size and Market Share from SDA Feeders’ Schools (Senior High Schools) in West Indonesia.
<em>8ISC Proceedings: Business, </em>, 88-99.
Retrieved from <a href="https://ejournal.unklab.ac.id/index.php/8ISCBU/article/view/646" target="_new">https://ejournal.unklab.ac.id/index.php/8ISCBU/article/view/646</a>