Loela Melody Catindoy; Veronica Agustin; Ana Mikaela Alegre; Aberose Bio; Mitzi Marie Manalang; Meryll Raymundo; Edilberto Manahan. The Psychological Impact of Covid-19 Quarantine Among Selected Elderly Residents of Selected Regions in Luzon, Philippines. IJPRSE 2021, 2, 143-153.