Ewung, B., Ater, P., & Balogun, O. (2019). Assessment of Human Immunodeficiency Virus (HIV) and Acquired Immunodeficiency Syndrome (AIDS) Vulnerability Index and Its Effect on Labour Productivity of Rural Farmers in Cross River State, Nigeria. Empirical Economic Review, 2(2), 17-32. https://doi.org/10.29145/eer/22/020102