Endi Zunaedy Pasaribu, Zul Amry, Edy Surya, Mukhtar, Edi Syahputra, Elmanani Simamora, Mesra Wati Ritonga 2026. Culture as a Mechanism of Mathematical Thinking: Developing a Bilah Panai Culture-Integrated Problem-Based Learning Model. International Journal of Special Education. 41, 8s (Jun. 2026), 885–892.