"Shu xue tong su zuo pin." . . "數學 通俗作品" . "Circles Juvenile literature." . . "Han sheng za zhi," . . "漢聲雜誌," . "Han sheng za zhi." . "漢聲雜誌." . "Han sheng za zhi" . "漢聲雜誌" . . . . . . . "Yúan" . . "Simple experiments illustrate the concept and characteristics of the circle." . "Simple experiments illustrate the concept and characteristics of the circle."@en . . . . "Yuan" . . . . . . . . . "圓" . . . "Juvenile works"@en . "Juvenile works" . . "Circle" . . . . . . . . . "Circles" . "Circles"@en . . . .