UZOECHINA, B.I., OGBU, K.O., OZOH, J.N. and IBIKUNLE, J.A. 2021. IMPACT OF COVID-19 AND INTERSTATE BORDER CLOSURE ON ECONOMIC EFFICIENCY OF MICRO AND SMALL ENTERPRISES IN ANAMBRA STATE, NIGERIA. Socialscientia: Journal of Social Sciences and Humanities. 5, 4 (Mar. 2021).