BURHANI, B. 2021. PENDEKATAN TEBAR PESONA TIM OLIMPIADE SAINS DI SMAN TITIAN TERAS HAS . EDUCATIONAL : Jurnal Inovasi Pendidikan & Pengajaran . 1, 3 (Aug. 2021), 107-113. DOI:https://doi.org/10.51878/educational.v1i3.369.