Khusna, Nisaul, dan Triana Pujilestari. “Analisis Partisipasi Tenaga Kerja Lansia Di Jawa Timur Tahun 2020: Analysis of Elderly Labor Participation in East Java in 2020”. Jurnal Ilmiah Komputasi dan Statistika 2, no. 1 (Agustus 25, 2022): 33–39. Diakses Maret 31, 2023. http://jikostik.org/index.php/jikostik/article/view/jikostikvol2no12022pujilestari.