Da’i, M. and Cahyaningrum, V.D. 2023. The Effect of Self Efficacy and Social Support on Achievement Motivation of UNUGIRI Rugby Athletes. Nusantara of Research : Jurnal Hasil-hasil Penelitian Universitas Nusantara PGRI Kediri. 10, 1 (Jan. 2023), 1–11. DOI:https://doi.org/10.29407/nor.v10i1.19295.