TY - BOOK AU - Pulpulaan, Rosemarie B. TI - Challenges faced by the public high school teachers in Piddig, Ilocos Norte on modular distance learning during the covid-19 pandemic PY - 2022/// CY - MMSU N1 - Thesis ( Bachelor of Arts in Sociology) - Mariano Marcos State University; Bibliography: leaves 63-65 ER -