APA

Yogesh Kumar, University of Delhi. Faculty of Education. Department of Education, Dr. Nirupma Jaimini Gu & University of Delhi. Faculty of Education. Department of Education. (2005). Study of direct and indirect effects of instructional models on concept based achievement in science. Delhi: University of Delhi India.

Chicago

Yogesh Kumar, University of Delhi. Faculty of Education. Department of Education, Dr. Nirupma Jaimini Gu and University of Delhi. Faculty of Education. Department of Education. 2005. Study of direct and indirect effects of instructional models on concept based achievement in science. Delhi: University of Delhi India.

Harvard

Yogesh Kumar, University of Delhi. Faculty of Education. Department of Education, Dr. Nirupma Jaimini Gu and University of Delhi. Faculty of Education. Department of Education. (2005). Study of direct and indirect effects of instructional models on concept based achievement in science. Delhi: University of Delhi India.

MLA

Yogesh Kumar, University of Delhi. Faculty of Education. Department of Education, Dr. Nirupma Jaimini Gu and University of Delhi. Faculty of Education. Department of Education. Study of direct and indirect effects of instructional models on concept based achievement in science. Delhi: University of Delhi India. 2005.