T M, Pratiwi R, Kemalasari IF, Purnamasari I. Connectors (multifunctional connectors) innovation of mask connector bricks in the time of covid-19. JEBL [Internet]. 2021 Aug. 4 [cited 2024 May 1];1(2):31-40. Available from: https://journal.privietlab.org/index.php/JEBL/article/view/92