This is the 277th most frequent Malay word.
tertentu
Specific.
Here, 'tertentu' is used to indicate a select and specific subset of topics.
Dia hanya berminat pada topik tertentu sahaja.
She is only interested in certain topics.
In this context, 'tertentu' means 'certain,' designating specific stores where the product is accessible.
Produk ini hanya tersedia di kedai tertentu.
This product is only available in certain stores.
The word 'tertentu' in this sentence is used to signify 'specific,' referring to particular steps that are not general but specifically defined.