MAMTA, Kumari; KISHORE, Vikash. Interrogative and Negative Constructions of Indian Sign Language. SMART MOVES JOURNAL IJELLH, [S.l.], v. 7, n. 9, p. 38, sep. 2019. ISSN 2582-3574. Available at: <https://ijellh.support-foundation.com/OJS/index.php/OJS/article/view/9718>. Date accessed: 14 july 2020.