Amoah Daniel Ayisi, Ming Yin. Third Party Service Provider Selection Using TOPSIS based Approach (A Case Study of Ghana Manganese Company). int. j. eng. mgmt. res. [Internet]. 2023 Apr. 25 [cited 2024 Apr. 20];13(2):145-54. Available from: https://ijemr.vandanapublications.com/index.php/ijemr/article/view/1165