SAFIRA, Heraria Ina; 						AUFA, Muhammad.
 Billing System Based on Macro Scheduler at PT Petrokimia Gresik.
<strong>Indonesian Vocational Research Journal</strong>, [S.l.], v. 2, n. 1, p. 39-46, dec. 2022.
ISSN 2829-1883.
Available at: &lt;<a href="https://journal.umg.ac.id/index.php/ivrj/article/view/4803" target="_new">https://journal.umg.ac.id/index.php/ivrj/article/view/4803</a>&gt;. Date accessed: 07 may 2024.
doi: <a href="http://dx.doi.org/10.30587/ivrj.v2i1.4803">http://dx.doi.org/10.30587/ivrj.v2i1.4803</a>.