Zainab,Tooba Long-term analysis of formaldehyde by using stationary mobile and satellite observations over Pakistan Tooba Zainab - Islamabad IESE (SCEE) NUST 2019 - 67p. H.B - MS Environmental Science . Thesis MS ES Subjects--Topical Terms: Environmental Science LC Class. No.: 363.7 Dewey Class. No.: 363.7 / ZAI