Time Series Forecasting Model Based on Intuitionistic Fuzzy Set via Equal Distribution of Hesitancy De-I-Fuzzification. - Nik Muhammad Farhan Hakim Nik Badrul Alam; Nazirah Ramli (Int. J. Uncertain. Fuzziness Knowl. Based Syst., 2021)

Arithmetic Operations of Intuitionistic Z-Numbers Using Horizontal Membership Functions. - Nik Muhammad Farhan Hakim Nik Badrul Alam; Ku Muhammad Naim Ku Khalif; Nor Izzati Jaini (SCDM, 2022)

Application of Intuitionistic Z-Numbers in Supplier Selection. - Nik Muhammad Farhan Hakim Nik Badrul Alam; Ku Muhammad Naim Ku Khalif; Nor Izzati Jaini (Intell. Autom. Soft Comput., 2023)

The Application of Z-Numbers in Fuzzy Decision Making: The State of the Art. - Nik Muhammad Farhan Hakim Nik Badrul Alam; Ku Muhammad Naim Ku Khalif; Nor Izzati Jaini; Alexander E. Gegov (Inf., 2023)