1 | Africa | 11 | ( Abdulkareem & Mohd Ramli, 2021; Adaku et al., 2018; Akinboade et al., 2013; Biljohn & Lues, 2019; Falisse & Leszczynska, 2022; Kuye & Akinwale, 2020; Li et al., 2019; Masiya et al., 2019; Musenze & Mayende, 2019; Phiri, 2017; Tassabehji et al., 2019; Yusheng & Ibrahim, 2019 ) | |
2 | Asia | 20 | ( Abdullah et al., 2016; Anwer Anwer et al., 2016; Aruan et al., 2018; Abdelkader Benmansour, 2019; Chakraborty et al., 2021; Jain Gupta & Suri, 2017; Hwang et al., 2021; Kekez et al., 2018; Lanin & Hermanto, 2019; Nayak & Samanta, 2014; Nguyen et al., 2017; Rahman et al., 2021; Saxena, 2017; Siddiquee, 2016; Siddiquee, 2019; Siddiquee & Xavier, 2020; Smith, 2020; ur Rahim & Shirazi, 2018; Uzir et al., 2021; Seyitoğlu & Ivanov, 2020 ) | |
4 | Europe | 11 | ( Biljohn & Lues, 2019; Bozic, 2020; Imran et al., 2019; Psomas et al., 2020; Seepma et al., 2020; Steiner et al., 2018; Van de Walle, 2016; Bucaite Vilke & Vilkas, 2018; Voorberg et al., 2017; Williams & Radnor, 2022 ) |
5 | North America | 5 | ( Healey & Evans, 2014; Loeffler & Church, 2015; Mick & Shay, 2014; Shadi et al., 2023 ) |