Dr. D.Nagaraja Kumari , Dr. K.V.Ratna Kumari ,Kasi Seshagiri Rao. 2023. “Perceptions Of Teachers Towards Teaching Physical Science In The Secondary Schools Of Vizianagaram District”. Elementary Education Online 22 (4):359-66. https://ilkogretim-online.org/index.php/pub/article/view/8173.