KUMALASARI, Irma.
 GERAKAN PROGRAM KALI BERSIH (PROKASIH) DI KALI SURABAYA  TAHUN 1987-1997.
<strong>Historia</strong>, [S.l.], v. 1, n. 1, p. 90-104, may 2018.
ISSN 2774-9932.
Available at: &lt;<a href="https://jurnal.unej.ac.id/index.php/JH/article/view/13505" target="_new">https://jurnal.unej.ac.id/index.php/JH/article/view/13505</a>&gt;. Date accessed: 31 jan. 2025.