Can someone explain thoroughly the difference between "dari" and "daripada"/"ke" and "kepada"?
'daripada' = than ==> used for comparisons
informal : 'daripada' can be replaced by 'dari'.
Es lebih dingin daripada air.
Ice is colder than water.
'dari' = from ==> used to mark starting place.
Tini baru berangkat dari Jakarta.
Tini just departed from Jakarta.
'ke' = to ==> used to mark direction or destination.
Tini pergi ke Sidney.
Tini goes to Sidney.
'kepada' = to ==> used to mark destination, used for persons.
informal: 'kepada' can be replaced by 'ke'.
Tini mengirim surat kepada Ibunya.
Tini sends a letter to her mother.