B. Wikara
Sebelas Maret University
Indonesia

Natural Science Education Doctoral Program, Student

S. Sutarno
Sebelas Maret University
Indonesia

Faculty of Mathematics and Natural Science, Biology Department, Lecturer

S. Suranto
Sebelas Maret University
Indonesia

Faculty of Mathematics and Natural Science, Biology Department, Lecturer

S. Sajidan
Sebelas Maret University
Indonesia

Faculty of Mathematics and Natural Science Education, Biology Education Department, Lecturer