Sugianto, Dicky, Andrian Liem, and Nurtaty Sinaga. “Reliability and Validity of the Indonesian Version of the Dual Filial Piety Scale”. Jurnal Psikologi Ulayat 11, no. 1 (April 30, 2024): 109—121. Accessed October 2, 2025. https://publication.k-pin.org/index.php/jpu/article/view/839.