Pronunciation: [ˌɛmˈɛsstˈɑː] (IPA)
Correct spelling for the English word "MSSTA" is [ˌɛmˈɛsstˈɑː], [ˌɛmˈɛsstˈɑː], [ˌɛ_m_ˈɛ_s_s_t_ˈɑː] (IPA phonetic alphabet).
Correct spelling for MSSTA