Firmansyah F, Risnawaty. Developing English Speaking Teaching Material Based on Project Based learning Spiritual Approaches at Senior High School Student of Islamic Boarding School Ulun Nuha Medan. IJERE [Internet]. 2025 Oct. 27 [cited 2025 Dec. 7];5(1):6-11. Available from: https://ejournal.ipinternasional.com/index.php/ijere/article/view/1618