MAULIYA, Annisa.
 Perkembangan Kognitif pada Peserta Didik SMP (Sekolah Menengah Pertama) Menurut Jean Piaget.
<strong>ScienceEdu</strong>, [S.l.], v. 2, n. 2, p. 86-91, dec. 2019.
ISSN 2685-2071.
Available at: &lt;<a href="https://jurnal.unej.ac.id/index.php/Scedu/article/view/15059" target="_new">https://jurnal.unej.ac.id/index.php/Scedu/article/view/15059</a>&gt;. Date accessed: 22 nov. 2024.
doi: <a href="https://doi.org/10.19184/se.v2i2.15059">https://doi.org/10.19184/se.v2i2.15059</a>.