HUDAEFI, Fahmi Ali et al.
 Constructing a Measurement of Ideal Water and Sanitation: A Proposed Model from Puskas BAZNAS.
<strong>Working Papers - Puskas Baznas</strong>, [S.l.], v. 3, jan. 2020.
Available at: &lt;<a href="http://www.iconzbaznas.com/publications/index.php/pwps/article/view/116" target="_new">http://www.iconzbaznas.com/publications/index.php/pwps/article/view/116</a>&gt;. Date accessed: 16 apr. 2026.