Marpaung, T.I. et al. 2026. Designing and Developing Students’ Lesson Plan Based On Merdeka Curriculum Within 21st Century Skills in the Teacher Training Faculty of Universitas HKBP Nommensen Pematangsiantar . Jurnal Ilmu Sosial dan Humaniora . 3, 4 (Jul. 2026), 523–532. DOI:https://doi.org/10.58540/isihumor.v3i4.2258.