Items where Author is "Sinaga, Bornok"

Siagian, Philips Pasca G and Sinaga, Bornok and Mulyono, Mulyono (2020) Analysis of Difficulty of Student’s Geometry Problem Solving Based on Van Hiele’s Thinking Theory with Macromedia Flash. International Journal on Emerging Mathematics Education, 3 (2). pp. 162-176. ISSN 2549-4996