AFIDAH, Zidan; 						SUPRIADI, Bambang; 						HANDAYANI, Rif'ati Dina.
 Expectation and Uncertainty of Helium Ion (He^+ ) Electron Position in the Position Space Wave Function at Quantum Numbers n ? 4.
<strong>BULETIN FISIKA</strong>, [S.l.], v. 26, n. 1, p. 88 – 95, may 2025.
ISSN 2580-9733.
Available at: &lt;<a href="http://103.29.196.112/index.php/buletinfisika/article/view/124497" target="_new">http://103.29.196.112/index.php/buletinfisika/article/view/124497</a>&gt;. Date accessed: 17 dec. 2025.
doi: <a href="https://doi.org/10.24843/BF.2025.v26.i01.p11">https://doi.org/10.24843/BF.2025.v26.i01.p11</a>.