Ragalytė Birutė, and Paukštienė Alma. “P. Masiotas in Education Mathematics Equations in Periodical Journal „Švietimo darbas“”. Lietuvos matematikos rinkinys 55, no. B (December 20, 2014): 121–124. Accessed September 27, 2021. https://www.journals.vu.lt/LMR/article/view/17694.