KOJA, Mayako. Languages Situation of the Chuwabo Community in Maputo, the Capital City of Mozambique. MOUSA: Journal of Musicology, Okinawa Prefectural University of Arts. 2023. 24. 29-41
Koja Mayako. The Transition of Revolutionary Songs Appeared in the Mozambican Liberation Struggle: A Case Study of Interviews with Educators in Zambézia Province. MOUSA: Journal of Musicology, Okinawa Prefectural University of Arts. 2022. 23. 41-54
沖縄のわらべうた継承の現代的特徴 : 蛍を題材にしたわらべうた《じんじん》に着目して-Contemporary Characteristics of Okinawa's Warabe Uta Inheritance : Focused on the Song of Firefly "Jin Jin". 2022. 51. 61-71
KOJA Mayako. Music Activity of Local Musicians in Multilingual States, Mozambique : Focusing on the Music Style and the Use of Languages for their Songs. MOUSA: Journal of Musicology, Okinawa Prefectural University of Arts. 2021. 22. 53-67
KOJA Mayako. Meeting with African Instrument Timbila here and now: Learning through Disparate Material. Journal of Okinawa Christian Junior College. 2021. 第50号. 53-62
Music Activity of Local Musicians in Multilingual States, Mozambique: Focusing on the Music Style and the Use of Languages for their Songs
(The Society for Research in Asiatic Music (Tôyô Ongaku Gakkai, TOG) 2021)
The Techniques of Making Timbila and its Skill Succession among the Chopi People
(The 55th JAAS Annual Meeting 2018)