First course in ordinary differen- tial equations.

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Kaituhi matua: LANGER, Rudolph E.
Hōputu: Pukapuka
I whakaputaina: New York, John Wiley, 1954.
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Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!